P wave abnormalities with myocardial infarction: an aid to the diagnosis of left ventricular failure.
D000328:Adult; D000368:Aged; D004562:Electrocardiography; D005260:Female; D006333:Heart Failure / Q000175:diagnosis; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis*