1. From the Department of Urology, Wilhelminenspital, Vienna, Austria
2. The Department of General and Experimental Pathology, University School of Medicine, Vienna, Austria
3. The Urologic Oncology Program, Department of Urology, Northwestern University Medical School, Chicago, Illinois
4. The Ludwig Boltzmann Institute for Clinical Oncology, KH Lainz, Vienna, Austria
5. The First Department of Surgery, University School of Medicine, Vienna, Austria