title: Trends in national abortion mortality, United States, 1940-1974: implications for prevention of future abortion deaths.
mesh_terms: D000024:Abortion, Illegal; D000028:Abortion, Induced / Q000401:mortality; D000029:Abortion, Legal; D000022:Abortion, Spontaneous / Q000401:mortality*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008428:Maternal Mortality; D011247:Pregnancy; D014481:United States