1. Department of Urology, Saarland University, Homburg/Saar, Germany
2. Department of General and Surgical Pathology, Saarland University, Homburg/Saar, Germany
3. Department of Pathology, Landesklinikum Wiener Neustadt, Wien, Austria
4. Ingenieurbüro für Gesundheitswesen GmbH, Leipzig, Germany
5. Department of Nuclear Medicine, Saarland University, Homburg/Saar, Germany
6. Clinic of Diagnostic and Interventional Radiology, Saarland University, Homburg/Saar, Germany
7. Department of Urology, Malteser Hospital Seliger Gerhard, Bonn, Germany