title: The "Nona" electrocardiogram: findings in 100 patients of the 90 plus age group.
mesh_terms: D000367:Age Factors; D000368:Aged; D001281:Atrial Fibrillation / Q000175:diagnosis; D005117:Cardiac Complexes, Premature / Q000139:chemically induced / Q000175:diagnosis; D006332:Cardiomegaly / Q000175:diagnosis; D004070:Digitalis / Q000009:adverse effects; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000175:diagnosis; D006329:Heart Conduction System / Q000187:drug effects / Q000503:physiopathology; D006339:Heart Rate; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000175:diagnosis; D010946:Plants, Medicinal; D010947:Plants, Toxic