TY - JOUR T1 - Drs Evans, Shaw, and Brocklebank comment JF - Archives of Disease in Childhood JO - Arch Dis Child SP - 633 LP - 633 DO - 10.1136/adc.64.4.633-a VL - 64 IS - 4 A2 - , Y1 - 1989/04/01 UR - http://adc.bmj.com/content/64/4/633.3.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -