title: Should every survivor of a heart attack be given a beta-blocker? Part I. Evidence from clinical trials.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000008:administration & dosage / Q000627:therapeutic use*; D000328:Adult; D000368:Aged; D002986:Clinical Trials as Topic; D004334:Drug Administration Schedule; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000401:mortality / Q000517:prevention & control*; D010919:Placebos; D012008:Recurrence; D013997:Time Factors
chemical_list: D000319:Adrenergic beta-Antagonists; D010919:Placebos