the effect of the beta-adrenergic blocking agent propranolol on morbidity and mortality risk after acute myocardial infarction was studied relative to coronary anatomy and left ventricular ( lv ) ejection fraction in a subset of 406 patients participating in a randomized study of 3,837 patients in the beta blocker heart attack trial ( bhat ) .
C0033497
propranolol
C0027051
heart attack