TY - JOUR T1 - Drs. Whitfield and Barr comment JF - Archives of Disease in Childhood JO - Arch Dis Child SP - 83 LP - 83 DO - 10.1136/adc.52.1.83-a VL - 52 IS - 1 AU - M. F. Whitfield AU - D. G. D. Barr Y1 - 1977/01/01 UR - http://adc.bmj.com/content/52/1/83.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -