Blood clotting and the pill.
D001777:Blood Coagulation / Q000187:drug effects; D001780:Blood Coagulation Tests; D002715:Chlormadinone Acetate; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D009640:Norethindrone; D013923:Thromboembolism / Q000139:chemically induced*
D003276:Contraceptives, Oral; D002715:Chlormadinone Acetate; D009640:Norethindrone