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Montero-Odasso M, Bergman H, Phillips NA, Wong CH, Sourial N, Chertkow H.Montero-Odasso M, et al. Among authors: phillips na.BMC Geriatr. 2009 Sep 1;9:41. doi: 10.1186/1471-2318-9-41.BMC Geriatr. 2009.PMID: 19723315Free PMC article.