1. Department of Urology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
2. Department of Biomedical Engineering and Physics, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
3. Department of Instrumental Services, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
4. Department of Pathology, VU University Medical Center, Free University, Amsterdam, the Netherlands
5. Department of Urology, VU University Medical Center, Free University, Amsterdam, the Netherlands