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de Cógáin M, Krambeck AE, Rule AD, Li X, Bergstralh EJ, Gettman MT, Lieske JC.de Cógáin M, et al. Among authors: krambeck ae.Urology. 2012 Feb;79(2):298-302. doi: 10.1016/j.urology.2011.07.1430. Epub 2011 Nov 16.Urology. 2012.PMID: 22088569Free PMC article.