1. Department of Urology; Erasmus M; edical Center; Rotterdam The Netherlands
2. Department of Urology; Maastricht University Medical Centre; Maastricht The Netherlands
3. Department of Urology; University Hospital Antwerpen; Edegem Belgium
4. Department of Urology; Hôpital Lyon Sud; Pierre Bénite Lyon France
5. Department of Urology; UZ Leuven; Leuven Belgium
6. Department of Urology; University Hospital of Nantes; Nantes France
7. Department of Uro-Neurology; National Hospital of Neurology and Neurosurgery; London United Kingdom