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Faddegon S, Cadeddu JA.Faddegon S, et al.Urol Clin North Am. 2012 May;39(2):181-90, vi. doi: 10.1016/j.ucl.2012.01.004. Epub 2012 Feb 16.Urol Clin North Am. 2012.PMID: 22487761Review.