title: [Sinoatrial block and the sick sinus syndrome].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000175:diagnosis*; D006801:Humans; D008297:Male; D012848:Sinoatrial Block / Q000175:diagnosis* / Q000503:physiopathology; D012849:Sinoatrial Node / Q000503:physiopathology*
vernacular_title: Bloqueo sinoauricular y síndrome del seno enfermo