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Pignone M, Earnshaw S, McDade C, Pletcher MJ.Pignone M, et al. Among authors: earnshaw s.J Gen Intern Med. 2013 Nov;28(11):1483-91. doi: 10.1007/s11606-013-2465-6. Epub 2013 May 17.J Gen Intern Med. 2013.PMID: 23681842Free PMC article.