Effect of oral contraceptives on vitamin K-dependent clotting activity.
D001779:Blood Coagulation Factors / Q000378:metabolism*; D003276:Contraceptives, Oral / Q000494:pharmacology*; D001728:Dicumarol / Q000378:metabolism*; D005260:Female; D006801:Humans; D011517:Prothrombin Time
D001779:Blood Coagulation Factors; D003276:Contraceptives, Oral; D001728:Dicumarol