title: Letter: Oral contraceptives and health: thromboembolic disease.
mesh_terms: D003276:Contraceptives, Oral / Q000009:adverse effects*; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D013923:Thromboembolism / Q000139:chemically induced*
chemical_list: D003276:Contraceptives, Oral