Preemies.
D002648:Child; D004991:Ethics, Institutional; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D007363:Intensive Care Units, Neonatal / Q000592:standards*; D008020:Life Support Care / Q000191:economics*; D009359:Neonatology / Q000639:trends*; D014481:United States