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Dorsey ER, Van Wuyckhuyse BC, Beck CA, Passalacqua WP, Guzick DS.Dorsey ER, et al. Among authors: guzick ds.Acad Med. 2009 Jan;84(1):26-31. doi: 10.1097/ACM.0b013e3181904633.Acad Med. 2009.PMID: 19116473Free PMC article.