RT Journal Article SR Electronic T1 Review: early postnatal corticosteroids reduce chronic lung disease in preterm infants, but increase complications JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 9 OP 9 DO 10.1136/ebn.5.1.9 VO 5 IS 1 YR 2002 UL http://ebn.bmj.com/content/5/1/9.abstract AB