title: Author response.
authors.affiliation: Madrid.
authors.forename: Julián
authors.initials: J
authors.lastname: Benito-León
authors.affiliation: New Haven, CT.
authors.forename: Elan D
authors.initials: ED
authors.lastname: Louis
authors.forename: Alberto
authors.initials: A
authors.lastname: Villarejo-Galende
authors.forename: Juan P
authors.initials: JP
authors.lastname: Romero
authors.affiliation: Madrid.
authors.forename: Félix
authors.initials: F
authors.lastname: Bermejo-Pareja
mesh_terms: D003704:Dementia / Q000453:epidemiology* / Q000401:mortality*; D005260:Female; D006801:Humans; D008297:Male; D012893:Sleep Wake Disorders / Q000453:epidemiology*