From the Centers for Disease Control and Prevention. State-specific pregnancy and birth rates among teenagers--United States, 1991-1992.
D000293:Adolescent; D001723:Birth Rate / Q000639:trends*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011253:Pregnancy in Adolescence / Q000706:statistics & numerical data*; D014481:United States / Q000453:epidemiology