PCR70 Avalglucosidase Alfa (AVA) Improves Symptoms and Functioning in Late-Onset Pompe Disease (LOPD) Patients vs Alglucosidase Alfa (ALG): Post-Hoc Analyses of Patient-Reported Outcomes (PROs) From COMET Trial

Autor: A Toscano, AT van der Ploeg, KI Berger, MM Dimachkie, B Schoser, C Gwaltney, J Msihid, A Hamed, N Thibault, L Pollissard, PS Kishnani

Publikováno v: Value in Health. 25:S403

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::610f6b89a38d23178460858f32be7ecc
https://doi.org/10.1016/j.jval.2022.09.2005

Author Correction: International Guideline for Idiopathic Inflammatory Myopathy-Associated Cancer Screening: an International Myositis Assessment and Clinical Studies Group (IMACS) initiative.

Autor: Oldroyd AGS; National Institute for Health Research Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, University of Manchester, Manchester, UK.; Department of Rheumatology, Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Science Centre, Salford, UK.; Centre for Musculoskeletal Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.; Centre for Epidemiology Versus Arthritis, University of Manchester, Manchester, UK., Callen JP; Division of Dermatology, Department of Medicine, University of Louisville School of Medicine, Louisville, KY, USA., Chinoy H; National Institute for Health Research Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, University of Manchester, Manchester, UK.; Department of Rheumatology, Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Science Centre, Salford, UK.; Centre for Musculoskeletal Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK., Chung L; Division of Immunology and Rheumatology, Department of Medicine and Dermatology, Stanford University, Stanford, CA, USA.; Palo Alto Health Care System, Palo Alto, CA, USA., Fiorentino D; Department of Dermatology, Stanford University School of Medicine, Redwood City, CA, USA., Gordon P; Department of Rheumatology, King's College Hospital NHS Foundation Trust, London, UK., Machado PM; Centre for Rheumatology, Division of Medicine, University College London, London, UK.; Department of Neuromuscular Diseases, Division of Medicine, University College London, London, UK.; National Institute for Health Research University College London Hospitals Biomedical Research Centre, University College London Hospitals National Health Service Trust, London, UK.; Department of Rheumatology, Northwick Park Hospital, London North West University Healthcare NHS Trust, London, UK., McHugh N; Department of Life Sciences, University of Bath, Bath, UK., Selva-O'Callaghan A; Systemic Autoimmune Diseases Unit, Vall D'Hebron General Hospital, Medicine Department, Universitat Autonoma de Barcelona, Barcelona, Spain., Schmidt J; Department of Neurology and Pain Treatment, Immanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School Theodor Fontane, Rüdersdorf bei Berlin, Germany.; Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Rüdersdorf bei Berlin, Germany.; Department of Neurology, Neuromuscular Centre, University Medical Centre Göttingen, Göttingen, Germany., Tansley SL; Department of Life Sciences, University of Bath, Bath, UK.; Royal National Hospital for Rheumatic Diseases, Royal United Hospitals NHS Foundation Trust Bath, Bath, UK., Vleugels RA; Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA., Werth VP; Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA.; Division of Dermatology, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, USA., Aggarwal R; Myositis Center and Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. aggarwalr@upmc.edu.

Publikováno v: Nature reviews. Rheumatology [Nat Rev Rheumatol] 2024 May; Vol. 20 (5), pp. 315.

International Guideline for Idiopathic Inflammatory Myopathy-Associated Cancer Screening: an International Myositis Assessment and Clinical Studies Group (IMACS) initiative.

Autor: Oldroyd AGS; National Institute for Health Research Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, University of Manchester, Manchester, UK.; Department of Rheumatology, Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Science Centre, Salford, UK.; Centre for Musculoskeletal Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.; Centre for Epidemiology Versus Arthritis, University of Manchester, Manchester, UK., Callen JP; Division of Dermatology, Department of Medicine, University of Louisville School of Medicine, Louisville, KY, USA., Chinoy H; National Institute for Health Research Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, University of Manchester, Manchester, UK.; Department of Rheumatology, Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Science Centre, Salford, UK.; Centre for Musculoskeletal Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK., Chung L; Division of Immunology and Rheumatology, Department of Medicine and Dermatology, Stanford University, Stanford, CA, USA.; Palo Alto Health Care System, Palo Alto, CA, USA., Fiorentino D; Department of Dermatology, Stanford University School of Medicine, Redwood City, CA, USA., Gordon P; Department of Rheumatology, King's College Hospital NHS Foundation Trust, London, UK., Machado PM; Centre for Rheumatology, Division of Medicine, University College London, London, UK.; Department of Neuromuscular Diseases, Division of Medicine, University College London, London, UK.; National Institute for Health Research University College London Hospitals Biomedical Research Centre, University College London Hospitals National Health Service Trust, London, UK.; Department of Rheumatology, Northwick Park Hospital, London North West University Healthcare NHS Trust, London, UK., McHugh N; Department of Life Sciences, University of Bath, Bath, UK., Selva-O'Callaghan A; Systemic Autoimmune Diseases Unit, Vall D'Hebron General Hospital, Medicine Department, Universitat Autonoma de Barcelona, Barcelona, Spain., Schmidt J; Department of Neurology and Pain Treatment, Immanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School Theodor Fontane, Rüdersdorf bei Berlin, Germany.; Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Rüdersdorf bei Berlin, Germany.; Department of Neurology, Neuromuscular Centre, University Medical Centre Göttingen, Göttingen, Germany., Tansley SL; Department of Life Sciences, University of Bath, Bath, UK.; Royal National Hospital for Rheumatic Diseases, Royal United Hospitals NHS Foundation Trust Bath, Bath, UK., Vleugels RA; Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA., Werth VP; Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA.; Division of Dermatology, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, USA., Aggarwal R; Myositis Center and Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. aggarwalr@upmc.edu.

Publikováno v: Nature reviews. Rheumatology [Nat Rev Rheumatol] 2023 Dec; Vol. 19 (12), pp. 805-817. Date of Electronic Publication: 2023 Nov 09.

CSF Findings in Relation to Clinical Characteristics, Subtype, and Disease Course in Patients With Guillain-Barré Syndrome.

Autor: Al-Hakem H; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Doets AY; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Stino AM; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Zivkovic SA; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Andersen H; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Willison HJ; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Cornblath DR; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Gorson KC; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Islam Z; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Mohammad QD; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Sindrup SH; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Kusunoki S; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Davidson A; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Casasnovas C; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Bateman K; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Miller JAL; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., van den Berg B; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Verboon C; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Roodbol J; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Leonhard SE; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Arends S; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Luijten LWG; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Benedetti L; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Kuwabara S; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Van den Bergh P; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Monges S; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Marfia GA; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Shahrizaila N; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Galassi G; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Pereon Y; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Bürmann J; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Kuitwaard K; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Kleyweg RP; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Marchesoni C; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Sedano Tous MJ; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Querol L; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Martín-Aguilar L; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Wang Y; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Nobile-Orazio E; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Rinaldi S; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Schenone A; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Pardo J; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Vermeij FH; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Waheed W; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Lehmann HC; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Granit V; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Stein B; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Cavaletti G; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Gutiérrez-Gutiérrez G; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Barroso FA; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Visser LH; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Katzberg HD; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Dardiotis E; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Attarian S; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., van der Kooi AJ; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Eftimov F; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Wirtz PW; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Samijn JPA; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Gilhuis HJ; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Hadden RDM; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Holt JKL; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Sheikh KA; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Kolb N; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Karafiath S; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Vytopil M; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Antonini G; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Feasby TE; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Faber C; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Kramers H; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Busby M; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Roberts RC; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Silvestri NJ; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Fazio R; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., van Dijk GW; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Garssen MPJ; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Verschuuren J; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Harbo T; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands., Jacobs BC; From the Department of Neurology (H.A.-H., H.A., T.H.), Aarhus University Hospital, Denmark; Department of Neurology (A.Y.D., B.v.d.B., C.V., J.R., S.E.L., S. Arends, L.W.G.L., K.K., B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands; Department of Neurology (A.M.S.), University of Michigan School of Medicine, Ann Arbor; Department of Neurology (S.A.Z.), University of Pittsburgh Medical Center, PA; Department of Neurology (H.J.W., A.D.), College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Neurology (D.R.C.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (K.C.G.), St. Elizabeth's Medical Centre, Tufts University, School of Medicine, Boston, MA; Laboratory of Gut-Brain Signaling (Z.I.); Laboratory Sciences and Services Division (LSSD) (Z.I.), icddr,b; National Institute of Neurosciences and Hospital (Q.D.M.), Dhaka, Bangladesh; Department of Neurology (S.H.S.), Odense University Hospital and University of Southern Denmark; Department of Neurology (S. Kusunoki), Kindai University Faculty of Medicine, Osaka-Sayama City, Japan; Department of Neurology (C.C.), Neuromuscular Unit, Bellvitge University Hospital-IDIBELL, CIBERER, Barcelona, Spain; Division of Neurology (K.B.), Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa; Department of Neurology (J.A.L.M.), Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, United Kingdom; Department of Neurology (B.v.d.B., H.K.), Franciscus Gasthuis & Vlietland (location: Vlietland Hospital), Schiedam; Department of Neurology (S. Arends, P.W.W.), Haga Hospital, Den Haag; Department of Neurology (L.W.G.L., L.H.V.), St. Elisabeth-TweeSteden Hospital, Tilburg, the Netherlands; Department of Neurology (L.B.), IRCCS Ospedale Policlinico San Martino, Genova, Italy; Department of Neurology (S. Kuwabara), Chiba University, Chuo-ku, Japan; Department of Neurology (P.V.d.B.), Neuromuscular Reference Centre, University Hospital Saint-Luc, University of Louvain, Brussels, Belgium; Department of Neurology (S.M.), Hospital de Pediatría J.P. Garrahan, Buenos Aires, Argentina; Dysimmune Neuropathies Unit (G.A.M.), Department of Systems Medicine, Tor Vergata University Hospital, Rome, Italy; Department of Medicine (N.S.), University of Malaya, Kuala Lumpur, Malaysia; Department of Neurology (G.G.), University Hospital of Modena, Italy; Department of Clinical Neurophysiology (Y.P.), Reference Centre for NMD, CHU Nantes, Nantes, France; Department of Neurology (J.B.), Saarland University Medical School, Homburg (previous hospital), and MVZ Pfalzklinikum (J.B.), Kusel, Germany (current hospital); Department of Neurology (K.K., R.P.K.), Albert Schweitzer Hospital, Dordrecht, the Netherlands; Department of Neurology (C.M.), Hospital Británico, Buenos Aires, Argentina; Department of Neurology (M.J.S.T.), Hospital Marques de Valdecilla, Santander; Department of Neurology (L.Q., L.M.-A.), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, CIBERER and ERN-NMD, Spain; Department of Neurology (Y.W.), Affiliated Hospital of Jining Medical University, Shandong Province, China; Neuromuscular and Neuroimmunology Service (E.N.-O.), IRCCS Humanitas Research Hospital, Milan University, Italy; Nuffield Department of Clinical Neurosciences (S.R.), University of Oxford and Oxford University Hospitals NHS Foundation Trust, United Kingdom; Department of Neurosciences, Ophthalmology, Rehabilitation, Genetics and Maternal Sciences (A.S.), University of Genova, and IRCCS San Martino Hospital (A.S.), Genova, Italy; Department of Neurology (J.P.), Hospital Clínico de Santiago, Travesia Choupana, Santiago de Compostela (A Coruña), Spain; Department of Neurology (F.H.V.), Franciscus Gasthuis & Vlietland (location: Franciscus Gasthuis), Rotterdam, the Netherlands; Department of Neurology (W.W., N.K.), University of Vermont Medical Centre, Burlington; Department of Neurology (H.C.L.), University Hospital of Cologne, Germany; Department of Neurology (V.G., B.S.), Montefiore Medical Center, Bronx, NY; Department of Neurology (G.C.), University Milano-Bicocca, Monza, Italy; Department of Neurology (G.G.-G.), Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain; Department of Neurology (F.A.B.), Instituto de Investigaciones Neurológicas Raúl Carrea, FLENI, Buenos Aires, Argentina; Department of Neurology (H.D.K.), University Health Network, University of Toronto, Ontario, Canada; Department of Neurology (E.D.), University Hospital of Larissa, Greece; Department of Neurology (S. Attarian), Reference Centre for NMD, CHU Timone ERN NMD, Marseille, France; Department of Neurology (A.J.v.d.K., F.E.), Amsterdam University Medical Centre, University of Amsterdam, Neuroscience Institute; Department of Neurology (J.P.A.S.), Maasstad Hospital, Rotterdam; Department of Neurology (H.J.G.), Reinier de Graaf Hospital, Reinier de Graafweg, Delft, the Netherlands; Department of Neurology (R.D.M.H.), King's College Hospital, Denmark Hill, London; Department of Neurology (J.K.L.H.), The Walton Centre, Liverpool, United Kingdom; Department of Neurology (K.A.S.), University of Texas Health Science Centre at Houston; Department of Biology (N.K., S. Karafiath), Utah Valley University, Orem; Department of Neurology (M.V.), Lahey Hospital and Medical Center, Tufts University School of Medicine, Burlington, MA; Department of Neurology, Mental Health and Sensory Organs (NESMOS) (G.A.), Faculty of Medicine and Psychology, University of Rome 'Sapienza,' Sant' Andrea Hospital, Italy; Department of Clinical Neurosciences (T.E.F.), University of Calgary, Alberta, Canada; Department of Neurology (C.F.), Maastricht University Medical Centre, the Netherlands; Department of Neurology (M.B.), Leeds Teaching Hospitals; Department of Neurology (R.C.R.), Addenbrooke's Hospital, Cambridge, United Kingdom; Department of Neurology (N.J.S.), University at Buffalo Jacobs School of Medicine and Biomedical Sciences, NY; Department of Neurology (R.F.), Scientific Institute San Raffaele, Milano, Italy; Department of Neurology (G.W.v.D.), Canisius Wilhelmina Hospital, Nijmegen; Department of Neurology (M.P.J.G.), Jeroen Bosch Hospital, 's-Hertogenbosch; Department of Neurology (J.V.), Leiden University Medical Centre; and Department of Immunology (B.C.J.), Erasmus MC, University Medical Centre Rotterdam, the Netherlands. b.jacobs@erasmusmc.nl.

Publikováno v: Neurology [Neurology] 2023 Jun 06; Vol. 100 (23), pp. e2386-e2397. Date of Electronic Publication: 2023 Apr 19.

Trial of Intravenous Immune Globulin in Dermatomyositis.

Autor: Aggarwal R; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Charles-Schoeman C; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Schessl J; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Bata-Csörgő Z; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Dimachkie MM; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Griger Z; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Moiseev S; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Oddis C; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Schiopu E; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Vencovský J; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Beckmann I; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Clodi E; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Bugrova O; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Dankó K; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Ernste F; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Goyal NA; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Heuer M; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Hudson M; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Hussain YM; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Karam C; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Magnolo N; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Nelson R; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Pozur N; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Prystupa L; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Sárdy M; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Valenzuela G; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., van der Kooi AJ; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Vu T; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Worm M; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.)., Levine T; From the University of Pittsburgh School of Medicine, Pittsburgh (R.A., C.O.), and Penn Neuroscience Center-Neurology, Hospital of the University of Pennsylvania, Philadelphia (C.K.) - both in Pennsylvania; the University of California, Los Angeles, Los Angeles (C.C.-S.), and the Department of Neurology, University of California, Irvine, Irvine (N.A.G.); the Friedrich-Baur Institute, Department of Neurology (J.S.), and the Department of Dermatology and Allergy, University Hospital (M.S.), Ludwig-Maximilians University of Munich, Munich, the University Hospital of Münster, Münster (N.M.), and the Clinic for Dermatology, Venereology and Allergology, Charité, Universitätsmedizin Berlin, Berlin (M.W.) - all in Germany; the Department of Dermatology and Allergology, University of Szeged, Szeged (Z.B.-C.), the Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen (Z.G., K.D.), and the Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, Budapest (M.S.) - all in Hungary; the University of Kansas Medical Center, Kansas City (M.M.D.); the Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow (S.M.), and Orenburg State Medical University, Orenburg (O.B.) - both in Russia; the Division of Rheumatology, Department of Internal Medicine, Michigan Medicine University Hospitals, Ann Arbor (E.S.); the Institute of Rheumatology and the Department of Rheumatology, Charles University, Prague, Czech Republic (J.V.); Octapharma Pharmazeutika, Vienna (I.B., E.C.); the Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, MN (F.E.); HMD Research, Orlando (M. Heuer), and Integral Rheumatology and Immunology Specialists (IRIS) and IRIS Research and Development, Plantation (G.V.), and the Department of Neurology, University of South Florida, Tampa (T.V.) - all in Florida; the Division of Rheumatology, Department of Medicine, Jewish General Hospital, Lady Davis Institute and McGill University, Montreal (M. Hudson); the University of Texas at Austin Dell Medical School, Austin Neuromuscular Center, Austin (Y.M.H.); Stones River Dermatology, Murfreesboro, TN (R.N.); Ivano-Frankivsk City Clinical Hospital No. 1, Ivano-Frankivsk (N.P.), and the Department of Internal Medicine, Sumy State University, Medical Institute, Sumy (L.P.) - both in Ukraine; the Department of Neurology, Amsterdam University Medical Centers, Amsterdam (A.J.K.); and Phoenix Neurological Associates, Phoenix, AZ (T.L.).

Publikováno v: The New England journal of medicine [N Engl J Med] 2022 Oct 06; Vol. 387 (14), pp. 1264-1278.