Staehler M1, Sauter T1, Miller K1, Kocjancic E 2, Costa P 3, Pacetta A 4, Sadi M4, Chartier-Kastler E5, Carone R6, Wachter J7, Maier U7, Slutsky J8 1. Dept. of Urology, Free University of Berlin, Germany, 2. University of Novara, Novara, Italy, 3. Hospital Gaston Doumerque, Nîmes, France, 4. University of Santa Amarao, Sao Paulo, Brazil, 5. University Hospital Pitie-Salpetriere, Paris, 6. Div.Urologia, Ospendale CRF, Torino, Italy , 7. Donauspital, Wien, Austria, 8. Rush Presbyterian/St. Lukes Medical Center, Chicago, USA