title: Letter: Beta-blockade and myocardial infarction.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D003327:Coronary Disease / Q000150:complications; D006801:Humans; D009203:Myocardial Infarction / Q000209:etiology / Q000517:prevention & control*; D012107:Research Design
chemical_list: D000319:Adrenergic beta-Antagonists