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Matthews A, Nelson M, Kaur A, Rayner M, Kelly P, Cowburn G.Matthews A, et al. Among authors: kelly p.Public Health Nutr. 2011 Aug;14(8):1394-402. doi: 10.1017/S136898001000371X. Epub 2011 Mar 23.Public Health Nutr. 2011.PMID: 21426622
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Cowburn G, Matthews A, Doherty A, Hamilton A, Kelly P, Williams J, Foster C, Nelson M.Cowburn G, et al. Among authors: kelly p.Public Health Nutr. 2016 Jan;19(1):93-103. doi: 10.1017/S1368980015000889. Epub 2015 Apr 15.Public Health Nutr. 2016.PMID: 25874731Free PMC article.