Abortion surveillance, 1981.
D000028:Abortion, Induced / Q000401:mortality / Q000706:statistics & numerical data*; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002487:Centers for Disease Control and Prevention, U.S.; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008393:Marriage; D010298:Parity; D011247:Pregnancy; D044469:Racial Groups; D014481:United States