Low birth weight and intensive care.
D001049:Apnea / Q000175:diagnosis; D001724:Birth Weight; D005260:Female; D005313:Fetal Death; D005865:Gestational Age; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000451:nursing; D007362:Intensive Care Units; D011247:Pregnancy; D012131:Respiratory Insufficiency / Q000401:mortality / Q000628:therapy