Pregnant teenagers and contraception. Contraceptive failure may be a major factor in teenage pregnancy.
Williams
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D000293:Adolescent; D017280:Condoms; D003267:Contraception; D003268:Contraception Behavior; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D012725:Sexual Behavior