1. Department of Pediatric Nephrology, University Hospital Antwerp, University of Antwerp, Faculty of Medicine, Antwerp, Belgium
2. Departments of Pediatric Urology
3. Institute for Medical Informatics, Biometry, and Epidemiology
4. Department of Pediatric Nephrology, Children's Hospital, University of Duisburg-Essen, Essen, Germany
5. Psychology, Wilhelmina Children's Hospital, University Medical Center, Utrecht, Netherlands
6. Department of Pediatric Urology, Sophia Children's Hospital, Erasmus Medical Center, Rotterdam, Netherlands
7. Pediatric Renal Center, University Hospital Ghent, Ghent, Belgium