[1] FREE UNIV BERLIN, KLINIKUM STEGLITZ, DEPT INTERNAL MED, D-1000 BERLIN 45, FED REP GER
[2] FREE UNIV BERLIN, KLINIKUM STEGLITZ, DEPT UROL, D-1000 BERLIN 45, FED REP GER
[3] FREE UNIV BERLIN, KLINIKUM STEGLITZ, DEPT SURG, D-1000 BERLIN 45, FED REP GER