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Collins CE, Morgan PJ, Jones P, Fletcher K, Martin J, Aguiar EJ, Lucas A, Neve M, McElduff P, Callister R.Collins CE, et al. Among authors: aguiar ej.BMC Public Health. 2010 Nov 3;10:669. doi: 10.1186/1471-2458-10-669.BMC Public Health. 2010.PMID: 21047432Free PMC article.Clinical Trial.
Collins CE, Morgan PJ, Jones P, Fletcher K, Martin J, Aguiar EJ, Lucas A, Neve MJ, Callister R.Collins CE, et al. Among authors: aguiar ej.J Med Internet Res. 2012 Apr 25;14(2):e57. doi: 10.2196/jmir.1980.J Med Internet Res. 2012.PMID: 22555246Free PMC article.Clinical Trial.