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 77 OP 77 DO 10.1136/adc.55.1.77 VO 55 IS 1 YR 1980 UL http://adc.bmj.com/content/55/1/77.abstract AB