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Classen DC, Avery AJ, Bates DW.Classen DC, et al. Among authors: bates dw.J Am Med Inform Assoc. 2007 Jan-Feb;14(1):48-55. doi: 10.1197/jamia.M2248. Epub 2006 Oct 31.J Am Med Inform Assoc. 2007.PMID: 17077453Free PMC article.