The public health implications of abortion.
D000029:Abortion, Legal / Q000009:adverse effects / Q000401:mortality; D000293:Adolescent; D005193:Family Planning Services; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D012306:Risk; D014481:United States