1. Department of Urology; Centre Hospitalier Universitaire de Toulouse; Toulouse France
2. Department of Statistics; Institut Universitaire du Cancer Toulouse Oncopole; Toulouse France
3. Ospedale San Raffaele; Milano Lombardia Italy
4. Centre Hospitalier Regional Universitaire de Lille; Lille France
5. Department of Urology; CHU Mondor; Créteil France
6. Department of Urology; Vita-Salute University San Raffaele; Milan Italy
7. Clinique St Jean du Languedoc; Toulouse France
8. Institut Mutualiste Montsouris; Paris France