Gaining ground, teen births in the United States 1940-2000.
Krulewitch
Cara J
CJ
D000293:Adolescent; D000328:Adult; D001723:Birth Rate / Q000639:trends*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011253:Pregnancy in Adolescence / Q000706:statistics & numerical data*; D014481:United States / Q000453:epidemiology