1. Department of Urology, St. Elisabeth-Hospital Straubing, Straubing, Germany
2. Federal Association of the Local Health Care Funds (AOK), Berlin, Germany
3. Research Institute of the Local Health Care Funds (WIdO), Berlin, Germany
4. Department of Urology, Ernst von Bergmann Hospital, Potsdam, Germany
5. Department of Urology, University of Leipzig, Leipzig, Germany
6. gfm (Gesundheitsforschung für Männer), Berlin, Germany
7. Medical Review Board of the Social Health Insurance Funds, Hannover, Germany