1. Department of UrologyAntwerp University Hospital Edegem Belgium
2. Faculty of Medicine and Health SciencesUniversity of Antwerp Antwerp Belgium
3. Department of UrologyLeiden University Medical Center Leiden The Netherlands
4. Department of Uro‐NeurologyThe National Hospital for Neurology and Neurosurgery and UCL Queen Square Institute of Neurology London United Kingdom
5. StatUa Center for StatisticsUAntwerpen Antwerp Belgium