1. Forensic Psychiatric Department (FPA), Mental Health Organisation (MHO) GGZ Friesland, Leeuwarden, The Netherlands
2. Department of Welfare and Healthcare, NHL Stenden University of Applied Science, Leeuwarden, The Netherlands
3. Department of Early Intervention Psychosis, Mental Health Organisation (MHO) GGZ Oost Brabant, Land van Cuijck en Noord Limburg, Boxmeer, The Netherlands
4. Early Detection and Intervention Team (EDIT), The Community Mental Health Service GGZ Noord-Holland Noord, Alkmaar, The Netherlands
5. Psychosis Research Department, Parnassia Psychiatric Institute, Den Haag, The Netherlands
6. Department of Clinical Psychology and Amsterdam Public Health Research Institute, Vrije Universiteit, Amsterdam, The Netherlands