[1] Univ Basel Hosp, CH-4031 Basel, Switzerland
[2] McGill Univ, Montreal Neurol Inst & Hosp, Neuroimmunol Unit, Montreal, PQ, Canada
[3] Univ Calif San Francisco, Multiple Sclerosis Ctr, San Francisco, CA 94143 USA
[4] Cleveland Clin, Neurol Inst, Mellen Ctr Treatment & Res Multiple Sclerosis, Cleveland, OH 44106 USA
[5] Queen Mary Univ London, Barts & London Sch Med & Dent, Blizard Inst, London, England
[6] Ruhr Univ Bochum, St Josef Hosp, Bochum, Germany
[7] Univ Lille Nord France, Lille, France
[8] Novartis Pharmaceut, E Hanover, NJ USA
[9] Novartis Pharma AG, Basel, Switzerland