title: End-systolic relations: their usefulness and limitations in assessing left ventricular contractile state.
mesh_terms: D002306:Cardiac Volume; D004452:Echocardiography; D006331:Heart Diseases / Q000503:physiopathology; D006801:Humans; D009200:Myocardial Contraction; D013318:Stroke Volume; D013599:Systole