Pharmacokinetic and pharmacodynamic effects of small doses of norethisterone released from vaginal rings continuously during 90 days.
D000328:Adult; D002940:Circadian Rhythm; D004305:Dose-Response Relationship, Drug; D004717:Endometrium / Q000166:cytology; D004958:Estradiol / Q000097:blood; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D007700:Kinetics; D009640:Norethindrone / Q000097:blood / Q000494:pharmacology*; D011374:Progesterone / Q000097:blood; D013997:Time Factors
D011374:Progesterone; D004958:Estradiol; D009640:Norethindrone