1. Department of Urology, Governor Kremers Centre Maastricht University Medical Centre Maastricht The Netherlands
2. Outpatient Services for Child and Adolescent Psychiatry Psychiatric Services Graubünden (PDGR) Chur Switzerland
3. Department of Child and Adolescent Psychiatry Saarland University Hospital Homburg Germany
4. Department of Public Health Saarpfalz Kreis Homburg Germany
5. Governor Kremers Centre Maastricht University Medical Centre Maastricht The Netherlands