TY - JOUR T1 - Populations and samples. JF - Archives of Disease in Childhood JO - Arch Dis Child SP - 1355 LP - 1356 DO - 10.1136/adc.66.11.1355 VL - 66 IS - 11 AU - M J Healy Y1 - 1991/11/01 UR - http://adc.bmj.com/content/66/11/1355.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -