[1] Vall Hebron Univ Hosp, Cemcat, Multiple Sclerosis Ctr Catalonia, Barcelona, Spain
[2] Vall Hebron Univ Hosp, Cemcat, Dept Neuroimmunol, Barcelona, Spain
[3] Ctr Networked Biomed Res Neurodegenerat Dis CIBER, Vall dHebron Res Inst, Neurodegenerat Dis Res Grp, Barcelona, Spain
[4] Univ Toronto, St Michaels Hosp, Div Neurol, BartLo MS Ctr, Toronto, ON, Canada