The effect of posture on the first derivative thoracic impedance cardiogram in patients with myocardial infarction. Preliminary report.
D000328:Adult; D002302:Cardiac Output; D004562:Electrocardiography; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis*; D010701:Phonocardiography; D011187:Posture