1. Department of Urology, Maastricht University Medical Center, Maastricht, The Netherlands
2. Department of Clinical Epidemiology, Maastricht University Medical Center, Maastricht, The Netherlands
3. Medical Technology Assessment, Maastricht University Medical Center, Maastricht, The Netherlands
4. Department of Epidemiology and Caphri Research School, Maastricht University, Maastricht, The Netherlands