RT Journal Article SR Electronic T1 Handbook of paediatric investigations JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 273 OP 273 DO 10.1136/adc.88.3.273-b VO 88 IS 3 A1 R Scott-Jupp YR 2003 UL http://adc.bmj.com/content/88/3/273.3.abstract AB