[1] Virginia Mason Med Ctr, Neurosci Inst, Seattle, WA 98101 USA
[2] Cleveland Clin, Mellen Ctr Multiple Sclerosis Treatment & Res, Dept Neurol, Cleveland, OH 44106 USA
[3] Baylor Inst Immunol Res, Multiple Sclerosis Program, Dallas, TX USA
[4] St Vincents Univ Hosp, Dept Neurol, Dublin 4, Ireland
[5] Charles Univ Prague, Fac Med 1, Dept Neurol, Prague, Czech Republic
[6] Biogen Idec Inc, Cambridge, MA USA
[7] CircleSci, Tytherington, England