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Gokden N, Roehl KA, Catalona WJ, Humphrey PA.Gokden N, et al. Among authors: humphrey pa.Urology. 2005 Mar;65(3):538-42. doi: 10.1016/j.urology.2004.10.010.Urology. 2005.PMID: 15780372
Smith DS, Humphrey PA, Catalona WJ.Smith DS, et al. Among authors: humphrey pa.Cancer. 1997 Nov 1;80(9):1852-6.Cancer. 1997.PMID: 9351559Clinical Trial.