title: Circadian pacemakers.
authors.forename: L A
authors.initials: LA
authors.lastname: Gómez-Bordas
authors.forename: M R
authors.initials: MR
authors.lastname: Nel
authors.forename: A S
authors.initials: AS
authors.lastname: Kurbaan
mesh_terms: D002940:Circadian Rhythm; D003422:Critical Care; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D014195:Travel