1. Martini-Clinic; Prostate Cancer Center
2. Department of Urology; University Medical Center Eppendorf; Hamburg; Germany
3. International Prevention Research Institute (iPRI); Lyon; France
4. University College London and University College London Hospitals Trust; London; UK
5. Urological Clinic; Dr. Castringius; Munich; Planegg
6. Department of Pathology; University Medical Center Eppendorf; Hamburg; Germany