title: Chronic heart block in adults. Clinical and electrophysiological observations.
mesh_terms: D000328:Adult; D000368:Aged; D001161:Arteriosclerosis / Q000175:diagnosis; D001281:Atrial Fibrillation / Q000175:diagnosis; D002037:Bundle-Branch Block / Q000175:diagnosis; D004562:Electrocardiography; D005071:Evoked Potentials; D005260:Female; D006327:Heart Block / Q000175:diagnosis* / Q000503:physiopathology; D006333:Heart Failure / Q000150:complications / Q000175:diagnosis; D006339:Heart Rate; D006801:Humans; D006973:Hypertension / Q000175:diagnosis; D008297:Male; D008875:Middle Aged