[1] Cleveland Clin, Mellen Ctr Multiple Sclerosis Treatment & Res, Dept Neurol, Neurol Inst, Cleveland, OH USA
[2] Queens Univ, Sch Rehabil Therapy, Kingston, ON, Canada
[3] Univ Florence, Sect Neurosci, Dept NEUROFARBA, Florence, Italy
[4] IRCCS Fdn Don Carol Gnocchi, Florence, Italy
[5] Ruhr Univ, Dept Neurol, Katholische Klinikum, Bochum, Germany
[6] Univ Vic Univ Cent Catalunya, Univ Autonoma Barcelona, Hosp Univ Vall dHebron, Dept Neurol,Multiple Sclerosis Ctr Catalonia, Barcelona, Spain
[7] Hosp Civils Lyon, Hop Neurol Pierre Wertheimer, Serv Neurol Sclerose Plaques Pathol Myeline & Neu, Lyon, France
[8] Hosp Civils Lyon, Hop Neurol Pierre Wertheimer, Fdn Eugene Devic EDMUS Sclerose Plaques, Lyon, France
[9] Ctr Neurosci Lyon, INSERM 1028, Lyon, France
[10] CNRS, Observ Francais Sclerose Plaque, UMR5292, Lyon, France
[11] Univ Claude Bernard Lyon 1, Lyon, France
[12] UT Southwestern Med Ctr, Dept Neurol, Sect Stat Planning & Anal, Dallas, TX 75390 USA
[13] Univ Manitoba, Max Rady Coll Med, Rady Fac Hlth Sci, Dept Med, Winnipeg, MB, Canada
[14] Univ Manitoba, Max Rady Coll Med, Rady Fac Hlth Sci, Dept Community Hlth Sci, Winnipeg, MB, Canada