Plasma concentrations of ethinylestradiol and D-norgestrel during two immediate postabortal oral contraceptive cycles.
D000028:Abortion, Induced; D004305:Dose-Response Relationship, Drug; D004997:Ethinyl Estradiol / Q000097:blood*; D005260:Female; D006801:Humans; D009644:Norgestrel / Q000097:blood*; D011247:Pregnancy; D013997:Time Factors
D009644:Norgestrel; D004997:Ethinyl Estradiol