Perinatal mortality. Overview and current trends.
D000293:Adolescent; D000328:Adult; D001723:Birth Rate; D001724:Birth Weight; D005260:Female; D005313:Fetal Death; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008423:Maternal Age; D011247:Pregnancy; D044469:Racial Groups; D014481:United States