title: Data from transnational study of oral contraceptives have been misused.
authors.forename: W O
authors.initials: WO
authors.lastname: Spitzer
mesh_terms: D003276:Contraceptives, Oral / Q000009:adverse effects*; D016903:Drug Monitoring; D005260:Female; D006801:Humans; D012307:Risk Factors; D013923:Thromboembolism / Q000139:chemically induced*; D006113:United Kingdom
chemical_list: D003276:Contraceptives, Oral