RT Journal Article SR Electronic T1 Reply to the commentary JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 1042 OP 1042 DO 10.1136/adc.66.9.1042 VO 66 IS 9 YR 1991 UL http://adc.bmj.com/content/66/9/1042.abstract AB