Epidemiologic evaluation of large-scale perinatal programs.
D001724:Birth Weight; D002585:Cesarean Section / Q000706:statistics & numerical data; D005260:Female; D005313:Fetal Death / Q000453:epidemiology; D006302:Health Services Research / Q000379:methods*; D006801:Humans; D007226:Infant Mortality; D009774:Obstetrics / Q000592:standards; D010500:Perinatology / Q000379:methods*; D011247:Pregnancy; D011787:Quality of Health Care; D012107:Research Design; D014481:United States