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Nickel JC, Downey J, Bénard F, Chetner M, Grantmyre J, So A, Whelan P.Nickel JC, et al. Among authors: downey j.Can Urol Assoc J. 2008 Aug;2(4):367-73. doi: 10.5489/cuaj.629.Can Urol Assoc J. 2008.PMID: 18781209Free PMC article.