[1] Univ Toronto, St Michaels Hosp, Dept Med, Div Neurol, Toronto, ON, Canada
[2] Li Ka Shing Knowledge Inst, Toronto, ON, Canada
[3] Queen Mary Univ, Wolfson Inst Populat Hlth, Prevent Neurol Unit, London, England
[4] Barts Health NHS Trust, Royal London Hosp, Dept Neurol, London, England
[5] Amiri Hosp, Dept Med, Div Neurol, Sharq, Kuwait
[6] Univ Florence, Dept NEUROFARBA, Sect Neurosci, Florence, Italy
[7] IRCCS Fdn Don Carlo Gnocchi, Florence, Italy
[8] Univ Calif San Francisco, Inst Neurosci, Dept Neurol, UCSF Weill, San Francisco, CA USA
[9] Ruhr Univ Bochum, Dept Neurol, Katholisches Klinikum, Bochum, Germany
[10] Multiple Sclerosis & Headache Res Inst, Santos, Brazil
[11] Univ Metropolitana, Dept Neurol, Santos, Brazil
[12] Harvard Med Sch, Brigham & Womens Hosp, Partners MS Ctr, Dept Neurol, Boston, MA USA
[13] Monash Univ, Dept Neurosci, Melbourne, VIC, Australia
[14] Alfred Hlth, Dept Neurol, Melbourne, VIC, Australia
[15] Univ Copenhagen, Rigshosp, Dept Neurol, Danish Multiple Sclerosis Ctr, Copenhagen, Denmark
[16] Ain Shams Univ, Fac Med, Dept Neurol, Cairo, Egypt
[17] AIIMS, Neurosci Ctr, Dept Neurol, New Delhi, India
[18] Vall Hebron Univ Hosp, Sclerosis Ctr Catalonia, Dept Neurol Neuroimmunol, Multiple Sclerosis Ctr Catalonia, Barcelona, Spain
[19] Hosp Civils Lyon, Serv Neurol, Hop Neurol Pierre Wertheimer, Sclerose Plaques Pathol Myeline & Neuro Inflammat, Bron, France
[20] INSERM, Ctr Rech Neurosci, Observ Francais Sclerose Plaques, 1028 CNRS,UMR 5292, Lyon, France
[21] Univ Lyon, Univ Claude Bernard Lyon 1, Lyon, France
[22] Eugene Devic EDMUS Fdn multiple Sclerosis State A, Bron, France