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