1. From the Department of Uro-Neurology, National Hospital for Neurology and Neurosurgery, Queen Square, London, United Kingdom, Medtronic, Maastricht and Department of Urology, Catharina Ziekenhuis, Eindhoven, The Netherlands, Divisione Urologia Unita Spinale, Ospedale Civile G. Fornaroli, Magenta MI, Italy, and Metropolitan Urology Specialists, St. Paul, Minnesota