European Association of Urology Research Foundation SATURN Study Group: Belgium: F. Van der Aa, Leuven; K. Everaert, Gent; K. Van Renterghem, Hasselt; S. Van Bruwaene, Kortrijk; and S. De Wachter, Antwerp. Czechia: R. Zachoval, Prague. Germany: T. Hüsch, Mainz; F. Queissert, Münster; and M. Fisch, Hamburg. Spain: J. Martinez-Salamanca, J. Romero-Otero, E. Lledó, A. Fraile Poblador, and J.M. Gómez de Vicente, Madrid; B. Padilla Fernandez, Tenerife; I. Puche-Sanz, Granada; J. Gago, Barcelona; S. Landis, Valencia; and A. Romero Hoyuela, Murcia. Finland: K.A.O. Tikkinen, Helsinki. UK: R. Hamid and A Sahai, London; and N. Thiruchelvam, Cambridge. Italy: E. Sacco, Rome. The Netherlands: J. Heesakkers and F. Martens, Nijmegen; and L. De Korte, Utrecht. Norway: O.J. Nilsen, Oslo; and J.M. Pedersen, Narvik.