%0 Journal Article %B Journal of Epidemiology and Community Health %D 2011 %G eng %M 21296903 %P 902-8 %T Do effects of price discounts and nutrition education on food purchases vary by ethnicity, income and education? Results from a randomised, controlled trial %V 65 %7 2011/02/08 %8 229320469059 %@ 1470-2738 (Electronic)0143-005X (Linking)