1. Center of Neuroimmunology, Laboratory of Advanced Imaging in Neuroimmunological Diseases, Hospital Clinic of Barcelona and Institut d’Investigacions Biomediques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
2. Department of Preventive Medicine and Epidemiology, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
3. Servei de Neurologia-Neuroimmunologia, Centre d’Esclerosi Múltiple de Catalunya (Cemcat), Vall d’Hebron Institut de Recerca, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
4. Servei de Neurologia-Neuroimmunologia, Centre d’Esclerosi Múltiple de Catalunya (Cemcat), Vall d’Hebron Institut de Recerca, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain; Department of Preventive Medicine and Epidemiology, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
5. Multiple Sclerosis Unit, Department of Neurology, Hospital Universitari de Bellvitge, Barcelona, Spain
6. Center of Neuroimmunology, Laboratory of Advanced Imaging in Neuroimmunological Diseases, Hospital Clinic of Barcelona and Institut d’Investigacions Biomediques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain/Pediatric Neuroimmunology and Neuroinfections Unit, Hospital Sant Joan de Déu Barcelona, University of Barcelona, Spain/Centre for Biomedical Network Research on Rare Diseases (CIBERER), Madrid, Spain
7. Department of Neurology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
8. Neuroimmunology and Multiple Sclerosis Unit, Neurology Department, Doctor Josep Trueta University Hospital, Girona, Spain/ Santa Caterina Hospital, Girona, Spain/Biomedical Research Institute (IDIBGI), Girona, Spain/Medical Sciences Department, University of Girona, Girona, Spain
9. Multiple Sclerosis Unit, Neuroscience Department, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
10. Multiple Sclerosis Unit, Neurology Department, Parc de Salut Mar, Barcelona, Spain
11. Institut Guttmann, Barcelona, Spain
12. Multiple Sclerosis Unit, Neurology Department, Hospital de Sant Joan Despí Moisès Broggi, Barcelona, Spain
13. Multiple Sclerosis Unit, Neurology Department, Hospital Universitari Arnau de Vilanova, Lleida, Spain
14. Neurology Department, Hospital Universitari Sant Joan de Reus, Tarragona, Spain
15. Multiple Sclerosis Unit, Neurology Department, Hospital Parc Taulí de Sabadell, Barcelona, Spain
16. Neurology Department, Hospital Universitari de Tarragona Joan XXIII, Tarragona, Spain
17. Neurology Department, Hospital de Mataró, Barcelona, Spain
18. Unit of Information and Knowledge, Catalan Health Service, Barcelona, Spain
19. Servei de Neurologia-Neuroimmunologia, Centre d’Esclerosi Múltiple de Catalunya (Cemcat), Vall d’Hebron Institut de Recerca, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain; Division of Neurology, St. Michael’s Hospital, University of Toronto, Toronto, ON, Canada