Publication info: J Public Health (Oxf). 2010 Dec; 32(4):526-31.PMID: 20202981External link: http://www.ncbi.nlm.nih.gov/pubmed/20202981Publication date: December, 2010Authors: Davies EA, Sehgal A, Linklater KM, Heaps K, Moren C, Walford C, Cook R, Møller HPublication type: Paper