Is the ejection fraction an index of myocardial contractility?
D000818:Animals; D001803:Blood Transfusion; D001810:Blood Volume; D006328:Cardiac Catheterization; D002302:Cardiac Output / Q000187:drug effects; D004285:Dogs; D006333:Heart Failure / Q000503:physiopathology; D006339:Heart Rate; D006470:Hemorrhage / Q000503:physiopathology; D006801:Humans; D010138:Pacemaker, Artificial; D011433:Propranolol / Q000494:pharmacology; D016276:Ventricular Function
D011433:Propranolol