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Worsley A, Blasche R, Ball K, Crawford D.Worsley A, et al. Among authors: ball k.Public Health Nutr. 2004 Aug;7(5):649-63. doi: 10.1079/PHN2003577.Public Health Nutr. 2004.PMID: 15251056
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Thornton LE, Crawford DA, Ball K.Thornton LE, et al. Among authors: ball k.Public Health Nutr. 2011 Mar;14(3):523-31. doi: 10.1017/S1368980010003022. Epub 2010 Dec 10.Public Health Nutr. 2011.PMID: 21144099
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Williams LK, Thornton L, Crawford D, Ball K.Williams LK, et al. Among authors: ball k.Public Health Nutr. 2012 Jul;15(7):1262-7. doi: 10.1017/S1368980011003417. Epub 2012 Jan 10.Public Health Nutr. 2012.PMID: 22230425