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 i OP i DO 10.1136/adc.2009.172726 VO 94 IS 10 A2 Martin Ward Platt YR 2009 UL http://adc.bmj.com/content/94/10/i.abstract AB