The impact of legal abortion: redefining the maternal mortality rate.
D000029:Abortion, Legal; D000367:Age Factors; D001723:Birth Rate; D005260:Female; D005298:Fertility; D005306:Fertilization; D005313:Fetal Death; D006801:Humans; D008428:Maternal Mortality; D009519:New York City; D011247:Pregnancy; D011248:Pregnancy Complications; D011336:Probability; D044469:Racial Groups