Goktas C, Akca O, Horuz R, Gokhan O, Albayrak S, Sarica K
Kartal Training and Research Hospital, Department of Urology, Istanbul, Turkey

Heretis I, Mamoulakis C, Papadimitriou V, Sofras F
Department of Urology, University Hospital of Heraklion, University of Crete Medical School, 71110, Heraklion, Crete, Greece

Lin WC, Ho CY, Chen YH, Chen IC, Chen HY, Tsai FJ, Shen JL, Man SS, Huang PH, Chen YL, Man KM, Chen WC
Department of Urology, China Medical University Hospital, Taichung, Taiwan

Olivi B, Védrine N, Costilles T, Boiteux JP, Guy L
Service d'urologie, hôpital Gabriel-Montpied, CHU de Clermont-Ferrand, BP 69, 63003 Clermont-Ferrand cedex 1, France

Zanetti G
Fondazione Ca' Granda, IRCCS, Ospedale Maggiore Policlinico, Milano, Italy