title: Significance of abnormalities of electrocardiogram in old people.
mesh_terms: D000367:Age Factors; D000368:Aged; D002037:Bundle-Branch Block / Q000175:diagnosis; D006332:Cardiomegaly / Q000175:diagnosis; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000503:physiopathology; D006331:Heart Diseases / Q000175:diagnosis* / Q000401:mortality; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D009026:Mortality; D009203:Myocardial Infarction / Q000503:physiopathology; D005082:Physical Exertion; D011379:Prognosis