the beta-blocker heart attack trial ( bhat ) was a national heart , lung , and blood institute-sponsored , multicenter , randomized , double-blind , and placebo-controlled trial designed to test whether the regular administration of propranolol hydrochloride to men and women who had experienced at least one myocardial infarction would result in a significant reduction in total mortality during a two- to four-year period .
C0282321
propranolol hydrochloride
C0027051
myocardial infarction