1. From the Consorci Institut D'Investigacions Biomediques August Pi i Sunyer (H.A., R.R.G., E.M.-H., A.S., F.G., J.D.); Neurology Service, Hospital Clínic de Barcelona (R.R.G., L.N., E.M.-H., A.S., J.D.); University of Barcelona (A.S., J.D.); Hospital Universitario Central de Asturias (B.R.), Oviedo; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid; Catalan Institution for Research and Advanced Studies (J.D.) Barcelona, Spain; and Department of Neurology, University of...