Nurse-midwifery care: 1925 to 1984.
D003625:Data Collection; D005260:Female; D049673:History, 20th Century; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008428:Maternal Mortality; D009721:Nurse Midwives / Q000266:history / Q000592:standards; D009736:Nursing Process; D010043:Outcome and Process Assessment, Health Care; D011247:Pregnancy; D011787:Quality of Health Care; D012107:Research Design; D014481:United States