title: Antithrombin 3 and the estrogen content of combined estro-progestagen contraceptives.
mesh_terms: D000991:Antithrombins / Q000032:analysis*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D004967:Estrogens / Q000009:adverse effects*; D005260:Female; D006801:Humans; D013923:Thromboembolism / Q000139:chemically induced*
chemical_list: D000991:Antithrombins; D003276:Contraceptives, Oral; D004967:Estrogens