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Gayet-Ageron A, Agoritsas T, Combescure C, Bagamery K, Courvoisier DS, Perneger TV.Gayet-Ageron A, et al.BMC Med Res Methodol. 2010 Oct 15;10:93. doi: 10.1186/1471-2288-10-93.BMC Med Res Methodol. 2010.PMID: 20950464Free PMC article.