title: [Letter: The bifocal demand pacemaker].
mesh_terms: D001145:Arrhythmias, Cardiac / Q000628:therapy*; D001282:Atrial Flutter / Q000628:therapy; D004562:Electrocardiography; D006327:Heart Block / Q000628:therapy; D006801:Humans; D010138:Pacemaker, Artificial / Q000379:methods*; D014693:Ventricular Fibrillation / Q000628:therapy
vernacular_title: Lettre: Le stimulateur "bifocal" à la demande