1. Department of Child and Adolescent Psychiatry; Saarland University Hospital; Homburg Germany
2. Department of Pediatric Urology; University Children's Hospitals UMC Utrecht and AMC Amsterdam; Utrecht The Netherlands
3. Department of Urogynaecology; King's College Hospital; London United Kingdom
4. Pediatric Psychology and Social Work; University Medical Center Utrecht; Utrecht The Netherlands
5. Department of Urology; University Hospital Mannheim; Medical Faculty of the Ruprechts-Karls-University of Heidelberg; Mannheim Germany