1. From the Department of Neurology (O.M., T.S., R.L., J.C.), Clinical Neuroscience Research Laboratory, Hospital Clínico Universitario, University of Santiago de Compostela, Santiago de Compostela; the Department of Neurosciences (M.M., N.P.d.l.O., A.D.), Hospital Universitari Germans Trias i Pujol, Badalona; the Department of Neurology (M.C., J.S.), Hospital Universitari Doctor Josep Trueta, Girona; and the Department of Neurology (J.V.), Hospital Universitario de La Princesa, Madrid, Spain.