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Dubuc N, Dubois MF, Raîche M, Gueye NR, Hébert R.Dubuc N, et al. Among authors: hebert r.BMC Geriatr. 2011 Oct 26;11:67. doi: 10.1186/1471-2318-11-67.BMC Geriatr. 2011.PMID: 22029878Free PMC article.Clinical Trial.