1. Neurology Department, Demyelinating Disease Unit, Hospital Universitario La Princesa, Diego de León, 62, 28006 Madrid, Spain
2. Neurology Department, Hospital Universitario Quirón Madrid, Diego de Velázquez, 1, 28223 Pozuelo de Alarcón, Spain
3. Neurology Department, Multiple Sclerosis Unit, Hospital Clínico Universitario Virgen de la Arrixaca (IMIB-Arrixaca), Carretera Madrid-Cartagena, S/N, 30120 Murcia, Spain
4. Department of Clinical Neuroimmunology & Multiple Sclerosis, UCAM Universidad Católica San Antonio de Murcia, Avenida Jerónimos, 135, 30107 Guadalupe, Spain
5. Medical Department, TEVA Pharma SLU, Calle Anabel Segura, 11, 28108 Alcobendas, Spain