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Spratt DE, Lee JY, Dess RT, Narayana V, Evans C, Liss A, Winfield R, Schipper MJ, Lawrence TS, McLaughlin PW.Spratt DE, et al. Among authors: narayana v.Eur Urol. 2017 Oct;72(4):617-624. doi: 10.1016/j.eururo.2017.02.007. Epub 2017 Feb 21.Eur Urol. 2017.PMID: 28233591Clinical Trial.