1. Neurology Service, Hospital Clínic, Barcelona, Spain2Neuroimmunology Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
2. Neuroimmunology Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
3. Neurology Service, Department of Neurosciences, Cruces University Hospital, University of the Basque Country, Bizkaia, Spain
4. Neurology Service, University Hospital Politècnic La Fe, Valencia, Spain
5. Neuroimmunology Program, Institut d’Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain5Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain6Department of Neurology, University of Pennsylvania, Philadelp