1. Section for Prostate Cancer Research, University Hospital of Bonn, Bonn, Germany
2. Institute of Pathology, University Hospital of Bonn, Bonn, Germany
3. Center for Integrated Oncology Cologne/Bonn, University Hospital of Bonn, Bonn, Germany
4. Clinic for Urology and Pediatric Urology, University Hospital of Bonn, Bonn, Germany
5. Pathology of the University Hospital of Lübeck and Leibniz Research Center Borstel, Lübeck and Borstel, Germany
6. Department of Oncology, Hematology and Rheumatology, University Hospital Bonn, Bonn, Germany