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Rothberg MB, Lahti M, Pekow PS, Lindenauer PK.Rothberg MB, et al.J Gen Intern Med. 2010 Jun;25(6):489-94. doi: 10.1007/s11606-010-1296-y. Epub 2010 Mar 30.J Gen Intern Med. 2010.PMID: 20352366Free PMC article.