RT Journal Article SR Electronic T1 British Paediatric Association JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 175 OP 179 DO 10.1136/adc.21.107.175 VO 21 IS 107 YR 1946 UL http://adc.bmj.com/content/21/107/175.abstract AB