title: β blockers in patients with heart failure and atrial fibrillation.
authors.affiliation: Servicio de Medicina Interna, Hospital Clínico Universitario Lozano Blesa, Facultad de Medicina, Zaragoza, Spain; Instituto de Investigación de Aragón, Lleida, Spain. Electronic address: jiperez@unizar.es.
authors.forename: Juan I
authors.initials: JI
authors.lastname: Pérez-Calvo
authors.affiliation: Servicio de Medicina Interna, Hospital Clínico Universitario Lozano Blesa, Facultad de Medicina, Zaragoza, Spain.
authors.forename: Marta
authors.initials: M
authors.lastname: Sánchez-Marteles
authors.affiliation: Servicio de Medicina Interna, Hospital Universitario Arnau de Vilanova, Lleida, Spain.
authors.forename: José L
authors.initials: JL
authors.lastname: Morales-Rull
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D001281:Atrial Fibrillation / Q000188:drug therapy* / Q000401:mortality*; D006333:Heart Failure / Q000188:drug therapy* / Q000401:mortality*; D006801:Humans
chemical_list: D000319:Adrenergic beta-Antagonists