title: Systolic intervals for evaluation of left ventricular function.
mesh_terms: D004562:Electrocardiography; D005069:Evaluation Studies as Topic; D005260:Female; D006334:Heart Function Tests; D006339:Heart Rate; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D010701:Phonocardiography; D013997:Time Factors