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Sheffield KM, Han Y, Kuo YF, Riall TS, Goodwin JS.Sheffield KM, et al. Among authors: goodwin js.JAMA Intern Med. 2013 Apr 8;173(7):542-50. doi: 10.1001/jamainternmed.2013.2912.JAMA Intern Med. 2013.PMID: 23478992Free PMC article.