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Smith K, Warner P, Williams LJ, Adamson WE, Katikireddi SV, Dewart P, Carman WF, Templeton K, Denison FC, Mackenzie DG.Smith K, et al.J Environ Public Health. 2011;2011:407505. doi: 10.1155/2011/407505. Epub 2011 Oct 3.J Environ Public Health. 2011.PMID: 21977047Free PMC article.