title: Oral contraceptives and postoperative venous thrombosis.
mesh_terms: D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D011183:Postoperative Complications; D012306:Risk; D013924:Thrombophlebitis / Q000209:etiology*
chemical_list: D003276:Contraceptives, Oral