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Ellis SE, Coffey CS, Mitchel EF Jr, Dittus RS, Griffin MR.Ellis SE, et al. Among authors: griffin mr.J Am Geriatr Soc. 2003 Jun;51(6):761-7. doi: 10.1046/j.1365-2389.2003.51254.x.J Am Geriatr Soc. 2003.PMID: 12757561Free PMC article.