[1] Univ Siena, Dept Neurol & Behav Sci, Siena, Italy
[2] Vrije Univ Amsterdam, Med Ctr, Dept Radiol, Amsterdam, Netherlands
[3] UCL Inst Neurol, London, England
[4] Hosp Univ Vall dHebron, Ctr Esclerosi Multiple Catalunya Cemcat, Dept Neurol Neuroimmunol, Barcelona, Spain
[5] Sheba Acad Med Ctr, Multiple Sclerosis Ctr, Ramat Gan, Israel
[6] Univ Hosp Basel, Dept Neurol, Basel, Switzerland
[7] Univ Bern, Univ Hosp Berne, Bern, Switzerland
[8] Univ New South Wales Med, Ingham Inst Appl Med Res, Kensington, NSW, Australia
[9] Univ Montreal, Dept Neurosci, Montreal, PQ, Canada
[10] Univ Vita Salute San Raffaele, Expt Neurophysiol, INSPE, Milan, Italy
[11] Queen Mary Univ London, Blizard Inst, Barts & London Sch Med & Dent, London, England
[12] Royal London Hosp, Barts Hlth NHS Trust, Clin Board Med Neurosci, London, England
[13] Copenhagen Univ Hosp, Rigshosp, Dept Neurol, Danish MS Ctr, Copenhagen, Denmark
[14] Univ Lille, CHU Lille, INSERM, U1172,LilNCog,FHU Imminent, Lille, France
[15] Univ Munster, Inst Translat Neurol, Dept Neurol, Munster, Germany
[16] Merck KGaA, Darmstadt, Germany
[17] Merck, Aubonne, Switzerland