1. 1Pathology and Urology and Departments of
2. 3Department of Urology, University of Essen, Essen, Germany;
3. 2Preventive Medicine, USC/Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, California;
4. 4Department of Urology, EuromedClinic, Fürth, Germany;
5. 5Head Meta-Analysis Unit, European Organization for Research and Treatment of Cancer, Brussels, Belgium;
6. 6Institut Municipal d'Investigació Mèdica, Barcelona, Spain;
7. 7Institute of Pathology, University of Basel, Basel, Switzerland;
8. 8Department of Urology, University of Texas M.D. Anderson Cancer Center, Houston, Texas; and
9. 9Cancer Center, University of California, San Francisco, California