1. Psychosis Centre; Department of Psychiatry and Psychotherapy; Centre for Psychosocial Medicine; University Medical Centre Hamburg-Eppendorf; Hamburg Germany
2. Department of Psychiatry and Psychotherapy; University of Cologne; Cologne Germany
3. Central Institute of Mental Health; Medical Faculty Mannheim; Heidelberg University; Mannheim Germany
4. Department of Psychiatry and Psychotherapy; Charite University Medicine Campus Mitte; Berlin Germany
5. Department of Psychiatry and Psychotherapy; Medical Faculty; Heinrich-Heine-University; Düsseldorf Germany
6. Department of Psychiatry, Psychotherapy and Psychosomatics; RWTH Aachen; Aachen Germany
7. Department of Psychiatry, Psychotherapy, and Preventive Medicine; Ruhr University Bochum; Bochum Germany
8. Department of Psychiatry and Psychotherapy; Georg-August-University Göttingen; Göttingen and Centre of Mental Health; County Hospitals Darmstadt-Dieburg; Gross-Umstadt Germany
9. Department of Psychiatry and Psychotherapy; University of Bonn; Bonn Germany