1. Bundeswehr Institute of Radiobiology, Munich, Germany
2. Clinic and Polyclinic for Nuclear Medicine, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
3. Department of Urology, Federal Armed Services Hospital Koblenz, Koblenz, Germany
4. Department of Occupational Health & Safety, Federal Ministry of Defense, Bonn, Germany
5. Department of Nuclear Medicine, University of Würzburg, Würzburg, Germany
6. Institute of Nuclear Medicine, Helios Kliniken, Schwerin, Germany
7. Department of Urology, Armed Services Hospital Ulm, Ulm, Germany