Neonatalogy part 2: a 20-year perspective.
D002657:Child Development; D005260:Female; D006801:Humans; D007224:Infant Care / Q000592:standards* / Q000639:trends; D007231:Infant, Newborn; D007234:Infant, Premature; D007363:Intensive Care Units, Neonatal; D008297:Male; D009359:Neonatology / Q000592:standards* / Q000639:trends; D009751:Nutritional Requirements; D014481:United States