The fertility of young adolescents.
D000028:Abortion, Induced; D000293:Adolescent; D000328:Adult; D001741:Black or African American; D001723:Birth Rate; D003075:Coitus; D003268:Contraception Behavior; D005260:Female; D005298:Fertility; D006801:Humans; D007086:Illegitimacy; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D014481:United States; D044465:White People