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Wolff JL, Boyd CM, Gitlin LN, Bruce ML, Roter DL.Wolff JL, et al. Among authors: gitlin ln.J Am Geriatr Soc. 2012 Jan;60(1):106-12. doi: 10.1111/j.1532-5415.2011.03770.x. Epub 2011 Dec 28.J Am Geriatr Soc. 2012.PMID: 22211465Free PMC article.