USE of estrogens in the control of conception.
D003267:Contraception; D003271:Contraceptive Agents, Female; D045166:Estradiol Congeners; D004967:Estrogens; D005260:Female; D005306:Fertilization; D006801:Humans
D003271:Contraceptive Agents, Female; D045166:Estradiol Congeners; D004967:Estrogens