SYMPOSIUM ON PROGESTOGEN-ESTROGEN COMPOUNDS.
D003276:Contraceptives, Oral; D004967:Estrogens; D005193:Family Planning Services; D005260:Female; D006801:Humans; D011153:Population; D011372:Progestins; D012736:Sex Education
D003276:Contraceptives, Oral; D004967:Estrogens; D011372:Progestins
FAMILY PLANNING; POPULATION