title: Maternal mortality study. 1970-1975.
mesh_terms: D000022:Abortion, Spontaneous / Q000401:mortality; D000773:Anesthesia, Obstetrical / Q000009:adverse effects; D002965:Classification; D004619:Embolism, Amniotic Fluid / Q000401:mortality; D005260:Female; D006801:Humans; D007751:Labor, Induced / Q000009:adverse effects; D008428:Maternal Mortality; D009518:New York; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000401:mortality; D011655:Pulmonary Embolism / Q000401:mortality; D014597:Uterine Rupture / Q000401:mortality