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Fraser LK, Edwards KL, Cade J, Clarke GP.Fraser LK, et al. Among authors: edwards kl.Int J Environ Res Public Health. 2010 May;7(5):2290-308. doi: 10.3390/ijerph7052290. Epub 2010 May 6.Int J Environ Res Public Health. 2010.PMID: 20623025Free PMC article.Review.
Greenfield JR, Almond M, Clarke GP, Edwards KL.Greenfield JR, et al. Among authors: edwards kl.J Public Health (Oxf). 2016 Jun;38(2):316-22. doi: 10.1093/pubmed/fdv032. Epub 2015 Mar 19.J Public Health (Oxf). 2016.PMID: 25795654