title: More on Koop's study of abortion.
mesh_terms: D000024:Abortion, Illegal; D000028:Abortion, Induced / Q000009:adverse effects*; D000029:Abortion, Legal / Q000523:psychology / Q000639:trends*; D000223:Adaptation, Psychological; D005260:Female; D006801:Humans; D011247:Pregnancy; D012307:Risk Factors; D014481:United States