Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Nailfold Capillaroscopy Characteristics of Antisynthetase Syndrome and Possible Clinical Associations: Results of a Multicenter International Study.

Autor: Sebastiani M; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Triantafyllias K; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium. ktriantafyllias@gmail.com.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital. ktriantafyllias@gmail.com., Manfredi A; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., González-Gay MA; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Palmou-Fontana N; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Cassone G; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Drott U; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Delbrück C; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Rojas-Serrano J; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Bertolazzi C; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Nuño L; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Giannini M; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Iannone F; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Vicente EF; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Castañeda S; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Selva-O'Callaghan A; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Trallero Araguas E; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Emmi G; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Iuliano A; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Bauhammer J; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Miehle N; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Parisi S; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Cavagna L; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Codullo V; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Montecucco C; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Lopez-Longo FJ; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Martínez-Barrio J; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Nieto-González JC; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Vichi S; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Confalonieri M; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Tomietto P; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Bergner R; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Sulli A; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Bonella F; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Furini F; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Scirè CA; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Bortoluzzi A; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Specker C; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Barsotti S; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Neri R; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Mosca M; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Caproni M; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Weinmann-Menke J; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Schwarting A; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Smith V; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital., Cutolo M; From the Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia, Modena, Italy; ACURA Rheumatology Center, Bad Kreuznach, Germany; Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria, Santander, Spain; Rheumatology Division, University Hospital of Frankfurt, Frankfurt, Germany; Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico; Servicio de Reumatología, Hospital Universitario La Paz, Madrid, Spain; Interdisciplinary Department of Medicine (DIM), Rheumatology Unit, University of Bari, Bari, Italy; Rheumatology Department, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria (IIS) Princesa, Madrid; Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group, Barcelona, Spain; Department of Experimental and Clinical Medicine, and Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence, Florence; Unità Operativa Complessa (UOC) Reumatologia, Ospedale San Camillo-Forlanini, Rome; ACURA Centre for Rheumatic Diseases, Baden-Baden, Germany; Rheumatology Department, Città Della Salute e della Scienza, Torino; Division of Rheumatology, University and Institute for Research and Health Care (IRCCS) Policlinico S. Matteo Foundation, Pavia, Italy; Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Dermatology Clinic, University Hospital of Trieste; Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara, Trieste; Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy; Medizinische Klinik A, Klinikum der Stadt, Ludwigshafen, Germany; Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa, Genoa, Italy; Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany; UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara, Italy; Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic, Essen, Germany; Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa; Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg, Mainz, Germany; University of Ghent, Ghent University Hospital, Ghent, Belgium.; M. Sebastiani, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; A. Manfredi, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; G. Cassone, MD, Rheumatology Unit, Azienda Policlinico of Modena, University of Modena and Reggio Emilia; K. Triantafyllias, MD, ACURA Rheumatology Center; A. Schwarting, MD, Professor, ACURA Rheumatology Center; M.A. González-Gay, MD, Professor, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; N. Palmou-Fontana, MD, Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDiVAL, University of Cantabria; U. Drott, MD, Rheumatology Division, University Hospital of Frankfurt; C. Delbrück, MD, Rheumatology Division, University Hospital of Frankfurt; J. Rojas-Serrano, MD, Professor, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; C. Bertolazzi, MD, Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas; L. Nuño, MD, Servicio de Reumatología, Hospital Universitario La Paz; M. Giannini, MD, DIM, Rheumatology Unit, University of Bari; F. Iannone, MD, Professor, DIM, Rheumatology Unit, University of Bari; E.F. Vicente, MD, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; S. Castañeda, MD, Professor, Rheumatology Department, Hospital Universitario de la Princesa, IIS Princesa; A. Selva-O'Callaghan, MD, Professor, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; E. Trallero Araguas, MD, Unidad de Enfermedades Autoinmunes Sistémicas, Servicio de Medicina Interna, Universidad Autonoma de Barcelona, on behalf of the GEAS group; G. Emmi, MD, Department of Experimental and Clinical Medicine, University of Florence; A. Iuliano, MD, UOC Reumatologia, Ospedale San Camillo-Forlanini; J. Bauhammer, MD, ACURA Centre for Rheumatic Diseases; N. Miehle MD, ACURA Centre for Rheumatic Diseases; S. Parisi, MD, Rheumatology Department, Città Della Salute e della Scienza; L. Cavagna, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; V. Codullo, MD, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; C. Montecucco, MD, Professor, Division of Rheumatology, University and IRCCS Policlinico S. Matteo Foundation; F.J. Lopez-Longo, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J. Martínez-Barrio, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; J.C. Nieto-González, MD, Servicio de Reumatología, Hospital General Universitario Gregorio Marañón; S. Vichi, MD, Dermatology Clinic, University Hospital of Trieste; M. Confalonieri, MD, Department of Pneumology and Respiratory Intermediate Care Unit, University Hospital of Cattinara; P. Tomietto, MD, Rheumatology Unit, Azienda Ospedaliero-Universitaria Ospedali Riuniti; R. Bergner, MD, Professor, Medizinische Klinik A, Klinikum der Stadt; A. Sulli, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; M. Cutolo, MD, Professor, Research Laboratory and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genoa, San Martino Polyclinic Hospital IRCCS Genoa; F. Bonella, MD, Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen; F. Furini, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C.A. Scirè, MD, Associate Professor, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; A. Bortoluzzi, MD, UOC Reumatologia, Azienda Ospedaliero Universitaria S. Anna, University of Ferrara; C. Specker, MD, Professor, Department for Rheumatology and Clinical Immunology, St. Josef Krankenhaus, University Clinic; S. Barsotti, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; R. Neri, MD, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Mosca, MD, Professor, Division of Rheumatology, Department of Clinical and Experimental Medicine, University of Pisa; M. Caproni, MD, Department of Medical and Surgical Critical Care, Section of Dermatology, University of Florence; J. Weinmann-Menke, MD, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; A. Schwarting, MD, Professor, Department of Internal Medicine, Rheumatology and Clinical Immunology, University Hospital Johannes-Gutenberg; V. Smith, MD, Professor, University of Ghent, Ghent University Hospital.

Publikováno v: The Journal of rheumatology [J Rheumatol] 2019 Mar; Vol. 46 (3), pp. 279-284. Date of Electronic Publication: 2018 Nov 15.