[1] Univ Buffalo, Dept Neurol, Buffalo, NY USA
[2] Heinrich Heine Univ, COGITO Ctr Appl Neurocognit & Neuropsychol Res, Dept Neurol, Med Fac, Dusseldorf, Germany
[3] UAB Sch Publ Hlth, Birmingham, AL USA
[4] Univ Hosp, Res Ctr Clin Neuroimmunol & Neurosci Basel, Basel, Switzerland
[5] Univ Hosp, MS Ctr, Dept Head Spine & Neuromed, Basel, Switzerland
[6] Univ Hosp, MS Ctr, Dept Clin Res, Basel, Switzerland
[7] Univ Hosp, MS Ctr, Dept Biomed, Basel, Switzerland
[8] Univ Hosp, MS Ctr, Dept Biomed Engn, Basel, Switzerland
[9] Univ Basel, Basel, Switzerland
[10] SUNY Stony Brook, Dept Neurol, Stony Brook, NY 11794 USA
[11] Novartis Pharma AG, Basel, Switzerland
[12] Novartis Pharmaceut, E Hanover, NJ USA
[13] Cleveland Clin, Neurol Inst, Dept Neurol, Mellen MS Ctr, Cleveland, OH 44106 USA