Unintended pregnancy. U.S. Public Health Service.
D000293:Adolescent; D000328:Adult; D003267:Contraception / Q000379:methods / Q000523:psychology; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D011275:Pregnancy, Unwanted; D011322:Primary Prevention; D012731:Sex Counseling