Contraception--a review of methods and their effectiveness.
D000293:Adolescent; D000328:Adult; D003267:Contraception / Q000379:methods*; D003271:Contraceptive Agents, Female; D003274:Contraceptive Devices, Female; D003275:Contraceptive Devices, Male; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy
D003271:Contraceptive Agents, Female