title: Oral contraceptives and venous thromboembolism.
authors.forename: M A
authors.initials: MA
authors.lastname: Lewis
authors.forename: L A
authors.initials: LA
authors.lastname: Heinemann
mesh_terms: D003276:Contraceptives, Oral / Q000009:adverse effects*; D004351:Drug Resistance; D015943:Factor Va / Q000378:metabolism; D005260:Female; D006801:Humans; D011486:Protein C / Q000378:metabolism; D013924:Thrombophlebitis / Q000139:chemically induced*
chemical_list: D003276:Contraceptives, Oral; D011486:Protein C; D015943:Factor Va