serial studies on the coagulation system were carried out in 120 randomly allocated healthy women to compare the effects of ( 1 ) triphasic gestodene/ethinyl estradiol and triphasic levonorgestrel/ethinyl estradiol and ( 2 ) monophasic gestodene/ethinyl estradiol and monophasic desogestrel/ethinyl estradiol .
C0015011
ethinyl estradiol
C1112096
desogestrel/ethinyl estradiol