title: Survival < or = 800 grams!?
authors.forename: H W
authors.initials: HW
authors.lastname: Kilbride
authors.forename: D K
authors.initials: DK
authors.lastname: Daily
mesh_terms: D002658:Developmental Disabilities / Q000453:epidemiology; D005500:Follow-Up Studies; D006801:Humans; D007226:Infant Mortality / Q000639:trends*; D007231:Infant, Newborn; D019102:Infant, Very Low Birth Weight; D009017:Morbidity / Q000639:trends; D012307:Risk Factors; D015996:Survival Rate; D013997:Time Factors