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Luthi JC, McClellan WM, Flanders WD, Pitts SR, Burnand B.Luthi JC, et al. Among authors: mcclellan wm.Int J Qual Health Care. 2005 Jun;17(3):229-34. doi: 10.1093/intqhc/mzi024. Epub 2005 Mar 23.Int J Qual Health Care. 2005.PMID: 15788466