Affiliation: | 1.Hannover Medical School, Urology and Urologic Oncology Clinic, 30625 Hannover, Deutschland;2.Military Medical Academy, Urology Clinic, 194044 Saint-Petersburg, Russia;3.Südharz Klinikum Nordhausen, Urology Clinic, 99734 Nordhausen, Deutschland;4.Kalmar County Hospital, 39231 Kalmar, Sweden |