1. Division of Urology, University Hospital Erlangen, D-91054, Erlangen, Germany
2. Department of Hematology, Hemostaseology, Oncology & Stem Cell Transplantation, Hannover Medical School, D-30625, Hannover, Germany
3. Department of Urology, Eberhard Karls University, D-72076, Tuebingen, Germany
4. University Hospital Frankfurt, Medical Clinic II, D-60590, Frankfurt, Germany
5. Centre Hospitalier Universitaire Vaudois, CH-1011, Lausanne, Switzerland
6. Department of Urology, University Hospital Münster, D-48149, Münster, Germany
7. Department of Urology, Charité-University Medicine, D-10117, Berlin, Germany
8. Urologikum Lübeck, D-23566, Lübeck, Germany
9. Department of Urology, Pediatric Urology & Urologic Oncology, Kliniken Essen-Mitte, D-45136, Essen, Germany
10. Department of Urology, Technical University of Munich, Rechts der Isar Medical Center, D-81675, Munich, Germany
11. Department of Oncology & Hematology, University Cancer Center Hamburg & Martini-Clinic, University Medical Center Hamburg-Eppendorf, D-20246, Hamburg, Germany
12. Department of Urology, Jena University Hospital, D-07747, Jena, Germany
13. Interdisciplinary GU Oncology, Clinic for Medical Oncology & Clinic for Urology, University Hospital Essen, D-45147, Essen, Germany