title: Thrombosis and oral contraception.
mesh_terms: D000293:Adolescent; D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D012107:Research Design; D012907:Smoking; D013927:Thrombosis / Q000139:chemically induced*
chemical_list: D003276:Contraceptives, Oral