TY - JOUR T1 - Drs Austin and Russell comment JF - Archives of Disease in Childhood JO - Arch Dis Child SP - 543 LP - 543 DO - 10.1136/adc.72.6.543-a VL - 72 IS - 6 A2 - , Y1 - 1995/06/01 UR - http://adc.bmj.com/content/72/6/543.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -