1. General, Visceral and Thoracic Surgery Department and Clinic, University Medical Center Hamburg-Eppendorf, Germany
2. Institute of Pathology, University Medical Center Hamburg-Eppendorf, Germany
3. Martini-Clinic, Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Germany
4. Department of Urology, Section for translational Prostate Cancer Research, University Medical Center Hamburg-Eppendorf, Germany