PT - JOURNAL ARTICLE ED - , TI - General DP - 2009 Mar 01 TA - Archives of Disease in Childhood PG - A88--A94 VI - 94 IP - Suppl 1 4099 - http://adc.bmj.com/content/94/Suppl_1/A88.short 4100 - http://adc.bmj.com/content/94/Suppl_1/A88.full SO - Arch Dis Child2009 Mar 01; 94