Effectiveness of an oral contraceptive; effects of a progestin-estrogen combination upon fertility, menstrual phenomena, and health.
D003267:Contraception; D003270:Contraceptive Agents; D003276:Contraceptives, Oral; D004967:Estrogens; D005260:Female; D005298:Fertility; D006801:Humans; D008598:Menstruation; D011374:Progesterone / Q000494:pharmacology*; D011372:Progestins
D003270:Contraceptive Agents; D003276:Contraceptives, Oral; D004967:Estrogens; D011372:Progestins; D011374:Progesterone
CONTRACEPTIVES; ESTROGENS/effects; MENSTRUATION; PROGESTERONE/effects