TY - JOUR T1 - Dr. Kleinberg comments JF - Archives of Disease in Childhood JO - Arch Dis Child SP - 742 LP - 742 DO - 10.1136/adc.52.9.742-a VL - 52 IS - 9 A2 - , Y1 - 1977/09/01 UR - http://adc.bmj.com/content/52/9/742.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -