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Joseph LJ, Prigeon RL, Blumenthal JB, Ryan AS, Goldberg AP.Joseph LJ, et al. Among authors: blumenthal jb.J Gerontol A Biol Sci Med Sci. 2011 Sep;66(9):1022-9. doi: 10.1093/gerona/glr093. Epub 2011 Jun 8.J Gerontol A Biol Sci Med Sci. 2011.PMID: 21653990Free PMC article.Clinical Trial.