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Thakore BK, Naffziger-Hirsch ME, Richardson JL, Williams SN, McGee R Jr.Thakore BK, et al.BMC Med Educ. 2014 Aug 2;14:160. doi: 10.1186/1472-6920-14-160.BMC Med Educ. 2014.PMID: 25084625Free PMC article.Clinical Trial.