RT Journal Article SR Electronic T1 Congenital perineal groove JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP archdischild-2017-314554 DO 10.1136/archdischild-2017-314554 A1 Marek Wojciechowski A1 Karen Van Mechelen A1 David Van Laere YR 2018 UL http://adc.bmj.com/content/early/2018/02/07/archdischild-2017-314554.abstract AB