1. Department of Internal Medicine and Clinical Immunology (C.A., O.B., Y.A.)
2. Institut National de la Santé et de la Recherche Médicale, Association Institut de Myologie, Centre de Recherche en Myologie, UMRS974, Paris, France (C.A., O.B., Y.A.)
3. Department of Pharmacology, Regional Center of Pharmacovigilance (J.-E.S., B.L.-V.), Sorbonne Universités, Pitié-Salpêtrière University Hospital, Paris, France
4. Division of Cardiovascular Medicine and Cardio-Oncology Program, Department of Medicine (J.-E.S., W.S., J.J.M.)
5. Division of Oncology, Department of Medicine (D.B.J., J.J.M.), Vanderbilt University Medical Center, Nashville, TN
6. Muscle Disease Unit, Laboratory of Muscle Stem Cells and Gene Expression, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD (A.L.M.)
7. Department of Neurology and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD (A.L.M.)
8. Departments of Neuropathology, Charité-Universitätsmedizin, Berlin, Germany (W.S.).
9. Department of Neuropathology (S.L.-L.)