TY - JOUR T1 - Commentary JF - Archives of Disease in Childhood JO - Arch Dis Child SP - 908 LP - 909 DO - 10.1136/adc.67.7.908 VL - 67 IS - 7 A2 - , Y1 - 1992/07/01 UR - http://adc.bmj.com/content/67/7/908.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -