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Mazzola CR, Power N, Bilsky MH, Robert R, Guillonneau B.Mazzola CR, et al.Can Urol Assoc J. 2014 Mar-Apr;8(3-4):E199-203. doi: 10.5489/cuaj.1734.Can Urol Assoc J. 2014.PMID: 24678366Free PMC article.