title: Systolic time interval.
mesh_terms: D006331:Heart Diseases / Q000175:diagnosis / Q000503:physiopathology; D006334:Heart Function Tests; D006339:Heart Rate; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D009200:Myocardial Contraction; D013599:Systole; D016276:Ventricular Function