RT Journal Article SR Electronic T1 Is persistent need for supplemental oxygen a good indicator of adverse pulmonary outcome in very immature infants? JF Archives of Disease in Childhood - Fetal and Neonatal Edition JO Arch Dis Child Fetal Neonatal Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP F254 OP F255 DO 10.1136/archdischild-2013-305768 VO 99 IS 4 A1 Eduardo Bancalari YR 2014 UL http://fn.bmj.com/content/99/4/F254.abstract AB