PT - JOURNAL ARTICLE ED - , AID - 10.1136/adc.81.1.100 DP - 1999 Jul 01 TA - Archives of Disease in Childhood PG - 100--100 VI - 81 IP - 1 4099 - http://adc.bmj.com/content/81/1/100.short 4100 - http://adc.bmj.com/content/81/1/100.full SO - Arch Dis Child1999 Jul 01; 81