Genome Sequencing for Diagnosing Rare Diseases.

Autor: Wojcik MH; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Lemire G; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Berger E; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Zaki MS; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Wissmann M; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Win W; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., White SM; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Weisburd B; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Wieczorek D; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Waddell LB; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Verboon JM; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., VanNoy GE; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Töpf A; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Tan TY; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Syrbe S; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Strehlow V; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Straub V; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Stenton SL; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Snow H; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Singer-Berk M; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Silver J; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Shril S; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Seaby EG; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Schneider R; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Sankaran VG; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Sanchis-Juan A; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Russell KA; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Reinson K; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Ravenscroft G; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Radtke M; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Popp D; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Polster T; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Platzer K; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Pierce EA; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Place EM; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Pajusalu S; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Pais L; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Õunap K; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Osei-Owusu I; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Opperman H; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Okur V; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Oja KT; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., O'Leary M; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., O'Heir E; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Morel CF; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Merkenschlager A; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Marchant RG; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Mangilog BE; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Madden JA; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., MacArthur D; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Lovgren A; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Lerner-Ellis JP; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Lin J; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Laing N; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Hildebrandt F; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Hentschel J; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Groopman E; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Goodrich J; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Gleeson JG; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Ghaoui R; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Genetti CA; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Gburek-Augustat J; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Gazda HT; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Ganesh VS; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Ganapathi M; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Gallacher L; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Fu JM; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Evangelista E; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., England E; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Donkervoort S; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., DiTroia S; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Cooper ST; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Chung WK; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Christodoulou J; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Chao KR; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Cato LD; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Bujakowska KM; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Bryen SJ; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Brand H; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Bönnemann CG; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Beggs AH; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Baxter SM; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Bartolomaeus T; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Agrawal PB; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Talkowski M; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Austin-Tse C; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Abou Jamra R; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., Rehm HL; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.)., O'Donnell-Luria A; From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.).

Publikováno v: The New England journal of medicine [N Engl J Med] 2024 Jun 06; Vol. 390 (21), pp. 1985-1997.

Unique Capabilities of Genome Sequencing for Rare Disease Diagnosis.

Autor: Wojcik MH, Lemire G, Zaki MS, Wissman M, Win W, White S, Weisburd B, Waddell LB, Verboon JM, VanNoy GE, Töpf A, Tan TY, Straub V, Stenton SL, Snow H, Singer-Berk M, Silver J, Shril S, Seaby EG, Schneider R, Sankaran VG, Sanchis-Juan A, Russell KA, Reinson K, Ravenscroft G, Pierce EA, Place EM, Pajusalu S, Pais L, Õunap K, Osei-Owusu I, Okur V, Oja KT, O'Leary M, O'Heir E, Morel C, Marchant RG, Mangilog BE, Madden JA, MacArthur D, Lovgren A, Lerner-Ellis JP, Lin J, Laing N, Hildebrandt F, Groopman E, Goodrich J, Gleeson JG, Ghaoui R, Genetti CA, Gazda HT, Ganesh VS, Ganapathy M, Gallacher L, Fu J, Evangelista E, England E, Donkervoort S, DiTroia S, Cooper ST, Chung WK, Christodoulou J, Chao KR, Cato LD, Bujakowska KM, Bryen SJ, Brand H, Bonnemann C, Beggs AH, Baxter SM, Agrawal PB, Talkowski M, Austin-Tse C, Rehm HL, O'Donnell-Luria A

Publikováno v: MedRxiv : the preprint server for health sciences [medRxiv] 2023 Aug 13. Date of Electronic Publication: 2023 Aug 13.

Impaired protein hydroxylase activity causes replication stress and developmental abnormalities in humans.

Autor: Fletcher SC; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Hall C; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Kennedy TJ; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Pajusalu S; Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, Tartu, Estonia.; Institute of Clinical Medicine, University of Tartu, Tartu, Estonia., Wojcik MH; Center for Mendelian Genomics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.; Divisions of Newborn Medicine and Genetics and Genomics, Department of Pediatrics, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA., Boora U; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Li C; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Oja KT; Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, Tartu, Estonia.; Institute of Clinical Medicine, University of Tartu, Tartu, Estonia., Hendrix E; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Westrip CA; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Andrijes R; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Piasecka SK; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Singh M; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., El-Asrag ME; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom.; Faculty of Science, Benha University, Benha, Egypt., Ptasinska A; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Tillmann V; Institute of Clinical Medicine, University of Tartu, Tartu, Estonia.; Children's Clinic, Tartu University Hospital, Tartu, Estonia., Higgs MR; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Carere DA; GeneDx, Gaithersburg, Maryland, USA., Beggs AD; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Pappas J; Clinical Genetic Services, Department of Pediatrics, NYU Langone Medical Center, New York, New York, USA., Rabin R; Clinical Genetic Services, Department of Pediatrics, NYU Langone Medical Center, New York, New York, USA., Smerdon SJ; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Stewart GS; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom., Õunap K; Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, Tartu, Estonia.; Institute of Clinical Medicine, University of Tartu, Tartu, Estonia., Coleman ML; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom.

Publikováno v: The Journal of clinical investigation [J Clin Invest] 2023 Apr 03; Vol. 133 (7). Date of Electronic Publication: 2023 Apr 03.