1. Departments of Urology, Stadtkrankenhaus Heilbronn, Heilbronn, University of Lubeck, Stadtkrankenhaus Karlsruhe, Karlsruhe, Klinikum Mannheim, University of Heidelberg, Heidelberg, University of Aachen, Achen, Klinikum Wuppertal, University of Witten-Herdecke, Witten, University of Giessen, Giessen, University of Homburg/Saar, Homburg, and Franziskuskrankenhaus Berlin, and Charite and Klinikum Steglitz, University of Berlin, Berlin, Germany, University of Innsbruck and Rudolfstiftung, Vienna,...