Eduard Roussel1, Benoit Beuselinck2, Maarten Albersen3. 1. Department of Urology, University Hospitals Leuven, Leuven, Belgium. Eduard.roussel@uzleuven.be. 2. Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium. 3. Department of Urology, University Hospitals Leuven, Leuven, Belgium.