RT Journal Article SR Electronic T1 Drs Modi and Keay comment JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 902 OP 903 DO 10.1136/adc.59.9.902-b VO 59 IS 9 YR 1984 UL http://adc.bmj.com/content/59/9/902.3.abstract AB