The use of progestins for oral contraception.
D003267:Contraception; D003270:Contraceptive Agents; D003276:Contraceptives, Oral / Q000628:therapy*; D006801:Humans; D011374:Progesterone / Q000031:analogs & derivatives; D011372:Progestins
D003270:Contraceptive Agents; D003276:Contraceptives, Oral; D011372:Progestins; D011374:Progesterone
CONTRACEPTIVES, ORAL/therapy; PROGESTERONE/related compounds