title: Study confirms tendency towards lower risk of myocardial infarction with second generation oral contraceptives in UK.
authors.forename: P
authors.initials: P
authors.lastname: O'Brien
mesh_terms: D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D009203:Myocardial Infarction / Q000139:chemically induced*; D016017:Odds Ratio; D012307:Risk Factors; D006113:United Kingdom
chemical_list: D003276:Contraceptives, Oral