RT Journal Article SR Electronic T1 Prophylactic low-dose hydrocortisone treatment increases the rate of survival without bronchopulmonary dysplasia in extremely preterm infants JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 177 OP 177 DO 10.1136/ebmed-2016-110505 VO 21 IS 5 A1 Anton van Kaam A1 Wes Onland YR 2016 UL http://ebm.bmj.com/content/21/5/177.abstract AB