title: [Reply].
authors.affiliation: Servicio de Medicina Interna III, Hospital Clínico San Carlos, Madrid, España. Electronic address: serranovillar@gmail.com.
authors.forename: Sergio
authors.initials: S
authors.lastname: Serrano Villar
authors.affiliation: Servicio de Neurología, Hospital Clínico San Carlos, Madrid, España.
authors.forename: Jesús
authors.initials: J
authors.lastname: Porta-Etessam
mesh_terms: D000369:Aged, 80 and over; D002545:Brain Ischemia / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male