1. Neurology‐Neuroimmunology Service Multiple Sclerosis Center of Catalonia (Cemcat) Hospital Universitari Vall d'Hebron Barcelona Spain
2. Department of Neurology Multiple Sclerosis Center (CEMHUN) Hospital Universitario Nacional de Colombia Bogotá Colombia
3. Preventive Medicine and Epidemiology Service Hospital Universitari Vall d'Hebron Barcelona Spain
4. Atención Primaria / IDIAP Jordi Gol Primary Care Research Institute Institut Catalá de la Salut, Catalunya Central Barcelona Spain