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Zwarenstein M, Reeves S, Russell A, Kenaszchuk C, Conn LG, Miller KL, Lingard L, Thorpe KE.Zwarenstein M, et al. Among authors: thorpe ke.Trials. 2007 Sep 18;8:23. doi: 10.1186/1745-6215-8-23.Trials. 2007.PMID: 17877830Free PMC article.