title: [Preliminary observation of systolic time interval and echocardiography on the grading of ventricular function (author's transl)].
mesh_terms: D000328:Adult; D000368:Aged; D004452:Echocardiography; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D009203:Myocardial Infarction / Q000503:physiopathology; D013599:Systole; D013997:Time Factors