RT Journal Article SR Electronic T1 Correction JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 547 OP 547 DO 10.1136/adc.2006.108415corr1 VO 93 IS 6 YR 2008 UL http://adc.bmj.com/content/93/6/547.abstract AB