1. Department of Child and Adolescent Psychiatry, Saarland University Hospital, Homburg, Germany
2. Department of Applied Psychology, Lessius University College, Antwerp, Belgium
3. Department of Pediatrics, Child Psychology, University Hospital Ghent, Ghent, Belgium
4. Department of Pediatrics, University of Nebraska Medical Center, Omaha, Nebraska
5. Charité - Universitätsmedizin Berlin, Berlin, Germany