RT Journal Article SR Electronic T1 Pericardial effusion and pulmonary vein stenosis in severe bronchopulmonary dysplasia 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 fetalneonatal-2021-321830 DO 10.1136/archdischild-2021-321830 A1 Emma E Williams A1 Mahesh Nanjundappa A1 Kunal Babla A1 James Wong A1 Theodore Dassios A1 Anne Greenough YR 2021 UL http://fn.bmj.com/content/early/2021/04/12/archdischild-2021-321830.abstract AB