1. Department of Urology, Jules Bordet Institute, Urology Clinics, Free University of Brussels, Brussels, Belgium.
2. Department of Urology, Erasme Hospital, Urology Clinics, Free University of Brussels, Brussels, Belgium.
3. Department of Emergency Medicine, Erasme Hospital, Urology Clinics, Free University of Brussels, Brussels, Belgium.
4. Department of Urology, CHU Rangueil, Toulouse, France.