1. Division of Urology; Department of Surgical Oncology; University Health Network; University of Toronto; Toronto ON Canada
2. Department of Urology; Thomas Jefferson University; Philadelphia PA USA
3. Department of Urology; School of Medicine; University of California, Davis; Sacramento CA USA
4. Martini-Klinik Prostate Cancer Center; University Hospital Hamburg-Eppendorf; Hamburg Germany
5. Department of Urology; University Hospital Hamburg-Eppendorf; Hamburg Germany