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Becher E, Roehrborn CG, Siami P, Gagnier RP, Wilson TH, Montorsi F.Becher E, et al. Among authors: siami p.Prostate Cancer Prostatic Dis. 2009;12(4):369-74. doi: 10.1038/pcan.2009.37. Epub 2009 Sep 1.Prostate Cancer Prostatic Dis. 2009.PMID: 19901936Clinical Trial.