1. Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2. General, Visceral and Thoracic Surgery Department and Clinic, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
3. Department of Urology, Charité - Universitätsmedizin Berlin, Berlin, Germany
4. Martini-Clinic, Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany