The original version of this article unfortunately contained a mistake. The number 1 affiliation of the authors is missing some information.
It should say:
Centre d’Esclerosi Múltiple de Catalunya (Cemcat), Department of Neurology/Neuroimmunology, Edifici Cemcat, Vall d’Hebron Institut de Recerca, Hospital Universitari Vall d’Hebron, Departament de Medicina, Universitat Autònoma de Barcelona, Pg. Vall d’Hebron 119-129, 08035, Barcelona, Spain
Instead of:
Centre d’Esclerosi Múltiple de Catalunya (Cemcat), Department of Neurology/Neuroimmunology, Edifici Cemcat, Vall d’Hebron Institut de Recerca, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Pg. Vall d’Hebron 119-129, 08035, Barcelona, Spain