Seif C1, Hamann M F1, Wefer B1, Herzog J2, Van der Horst C1, Naumann M1, Juenemann K1, Deuschel G3, Braun P1 1. Department of Urology, University of Schleswig-Holstein, 2. Department of Neurology, University of Schleswig-Hols, 3. Department of Neurology, University of Schleswig-Holstein