title: Risk of myocardial infarction in oral-contraceptive users.
mesh_terms: D000328:Adult; D000367:Age Factors; D003280:Contraceptives, Oral, Synthetic / Q000009:adverse effects; D004997:Ethinyl Estradiol / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000139:chemically induced*; D009644:Norgestrel / Q000009:adverse effects*; D012189:Retrospective Studies; D012306:Risk
chemical_list: D003280:Contraceptives, Oral, Synthetic; D009644:Norgestrel; D004997:Ethinyl Estradiol