RT Journal Article SR Electronic T1 Pulse oximetry screening for critical congenital heart defects: a repeat UK national survey 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 F558 OP F558 DO 10.1136/archdischild-2017-313378 VO 102 IS 6 A1 Mikrou, Paraskevi A1 Singh, Anju A1 Ewer, Andrew K YR 2017 UL http://fn.bmj.com/content/102/6/F558.2.abstract AB