Affiliation: | 1. Department of Neurology, Hospital Clínico San Carlos, Madrid, Spain;2. Department of Neurology, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, Spain;3. Department of Neurology, Hospital Quirón Madrid, Pozuelo de Alarcón, Madrid, Spain;4. Department of Medicine, Universidad Complutense, Madrid, Spain |