1. Psychosis Centre, Department of Psychiatry and Psychotherapy, Centre for Psychosocial Medicine; University Medical Center Hamburg-Eppendorf (UKE); Hamburg Germany
2. Department of Child and Adolescent Psychiatry, Psychotherapy and Psychosomatics; University Medical Center Hamburg-Eppendorf (UKE); Hamburg Germany
3. Psychiatry Research; The Zucker Hillside Hospital; Glen Oaks New York USA
4. Community Psychiatric Center Eimsbüttel (GPZE); Hamburg Germany
5. University Hospital of Child and Adolescent Psychiatry; University of Bern; Bern Switzerland
6. Department of Clinical Psychology and Psychotherapy; University of Hamburg; Hamburg Germany
7. Center for Mental Health, Department of Psychiatry; Psychotherapy and Psychosomatics; Hamburg Germany
8. Center for Mental Health, Department of Child and Adolescent Psychiatry Psychotherapy and Psychosomatics; Asklepios Hospital Harburg; Hamburg Germany
9. Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy; University Hospital Muenster; Münster Germany
10. Institute for Biostatistics and Epidemiology; University Medical Center Hamburg-Eppendorf (UKE); Hamburg Germany