RT Journal Article SR Electronic T1 Sildenafil in bronchopulmonary dysplasia: safe to use? 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 F369 OP F369 DO 10.1136/archdischild-2015-308164 VO 100 IS 4 A1 Andrew James Wardle A1 Georgia May Connolly A1 Tom Stonier A1 Robert Tulloh YR 2015 UL http://fn.bmj.com/content/100/4/F369.2.abstract AB