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Yukawa M, Cummings DE, Matthys CC, Callahan HS, Frayo RS, Spiekerman CF, Weigle DS.Yukawa M, et al. Among authors: callahan hs.J Am Geriatr Soc. 2006 Apr;54(4):648-53. doi: 10.1111/j.1532-5415.2006.00689.x.J Am Geriatr Soc. 2006.PMID: 16686877