Changes in physiologically free circulating estradiol and testosterone during exposure to levonorgestrel.
D000328:Adult; D004958:Estradiol / Q000097:blood*; D005260:Female; D006801:Humans; D016912:Levonorgestrel; D008598:Menstruation; D009644:Norgestrel / Q000008:administration & dosage*; D012738:Sex Hormone-Binding Globulin / Q000378:metabolism; D013739:Testosterone / Q000097:blood*; D014621:Vagina
D012738:Sex Hormone-Binding Globulin; D009644:Norgestrel; D013739:Testosterone; D004958:Estradiol; D016912:Levonorgestrel