title: [Study of sinoatrial conduction in sinus bradycardia].
mesh_terms: D000328:Adult; D000368:Aged; D001919:Bradycardia / Q000175:diagnosis* / Q000503:physiopathology; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012849:Sinoatrial Node / Q000503:physiopathology*
vernacular_title: Estudio de la conducción sinoatrial en la bradicardia sinusal.