RT Journal Article SR Electronic T1 Atoms JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 661 OP 661 VO 90 IS 7 A1 Howard Bauchner YR 2005 UL http://adc.bmj.com/content/90/7/661.2.abstract AB