The outcome of very low birth weight infants: past, present and future.
D006801:Humans; D007226:Infant Mortality; D007230:Infant, Low Birth Weight / Q000254:growth & development*; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology; D007363:Intensive Care Units, Neonatal