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Tofil NM, Benner KW, Zinkan L, Alten J, Varisco BM, White ML.Tofil NM, et al. Among authors: benner kw.J Grad Med Educ. 2011 Mar;3(1):81-7. doi: 10.4300/JGME-D-10-00070.1.J Grad Med Educ. 2011.PMID: 22379527Free PMC article.
Tofil NM, Benner KW, Winkler MK.Tofil NM, et al. Among authors: benner kw.South Med J. 2005 Feb;98(2):253-6. doi: 10.1097/01.SMJ.0000145307.80421.4B.South Med J. 2005.PMID: 15759964