title: Concentration of antithrombin 3 during combined and progestogen-only oral contraceptive treatment.
mesh_terms: D000293:Adolescent; D000328:Adult; D000991:Antithrombins / Q000097:blood*; D001777:Blood Coagulation / Q000187:drug effects; D003276:Contraceptives, Oral / Q000494:pharmacology*; D005260:Female; D006801:Humans; D009640:Norethindrone / Q000008:administration & dosage / Q000494:pharmacology*; D013997:Time Factors
chemical_list: D000991:Antithrombins; D003276:Contraceptives, Oral; D009640:Norethindrone