1. Department of Urology; Institut Mutualiste Montsouris; Université Paris Descartes; Paris France
2. Cancer Center; Southend University Hospital; Southend-on-sea UK
3. Klinik für Urologie; Luzerner Kantonsspital; Lucerne Switzerland
4. Unit of Urology/Division of Oncology; Urological Research Institute; IRCCS Ospedale San Raffaele; Milan Italy