1. De Forensische Zorgspecialisten, University of Applied Sciences Utrecht, Utrecht, The Netherlands
2. Research Department, De Oostvaarderskliniek, Almere, The Netherlands
3. Research Department, Transfore, Deventer, The Netherlands
4. Research Department, De Woenselse Poort, Eindhoven, The Netherlands
5. Forensic Psychiatric Hospital GGz Drenthe, University of Groningen, Groningen, The Netherlands