Adherence to national guidelines for drug treatment of suspected acute myocardial infarction: evidence for undertreatment in women and the elderly. - McLaughlin TJ; Soumerai SB; Willison DJ; Gurwitz JH; Borbas C; Guadagnoli E; McLaughlin B; Morris N; Cheng SC; Hauptman PJ; Antman E; Casey L; et al. (Archives of Internal Medicine, 1996)