Journal of Urology | August 25, 2004 | Volume: 165 | Issue: 1 | Pages: 119-125
American Journal of Clinical Pathology | January 8, 2003 | Volume: 113 | Issue: 2 | Pages: 275-279
Cancer | August 25, 2002 | Volume: 85 | Issue: 6 | Pages: 1300-1304
10.1002/(sici)1097-0142(19990315)85:6<1300::aid-cncr12>3.0.co;2-#