1. Department of Urology and Pediatric Urology, University Hospital Würzburg, Würzburg, Germany
2. San Raffaele Hospital, Milan, Italy
3. Department of Urology, University of Turin, Turin, Italy
4. Department of Urology, Mayo Clinic, Rochester, Minnesota
5. Microarray Core Unit, IZKF (Interdisciplinary Center for Clinical Research), University of Würzburg, Würzburg, Germany
6. Community Hospital Karlsruhe, Karlsruhe, Germany
7. University Hospital Leuven, Leuven, Belgium