Citation:Hieke S, Wilczynski P 2012
From National Cancer Control Policy
Hieke S, Wilczynski P. Colour Me In--an empirical study on consumer responses to the traffic light signposting system in nutrition labelling. Public Health Nutr 2012 May;15(5):773-82 Available from: http://www.ncbi.nlm.nih.gov/pubmed/22115180.
Critical appraisals