AMENORRHEA AND BIRTH CONTROL PILLS.
D000568:Amenorrhea; D003267:Contraception; D003270:Contraceptive Agents; D003276:Contraceptives, Oral; D003933:Diagnosis; D005260:Female; D006801:Humans; D011247:Pregnancy
D003270:Contraceptive Agents; D003276:Contraceptives, Oral
AMENORRHEA; CONTRACEPTIVES, ORAL; DIAGNOSIS; PREGNANCY