1. Department of Clinical Psychology University of Amsterdam Amsterdam The Netherlands
2. Department of Psychological Methods University of Amsterdam Amsterdam The Netherlands
3. Department of Medical and Clinical Psychology Tilburg University Tilburg The Netherlands
4. GGZ Oost Brabant Helmond Helmond Netherlands
5. PsyQ Amsterdam Amsterdam The Netherlands
6. PsyQ Haarlem Haarlem The Netherlands
7. NPI Amsterdam The Netherlands
8. Emergis Kloetinge The Netherlands
9. Viersprong Institute for Studies on Personality Disorders Rotterdam The Netherlands
10. Altrecht Academic Anxiety Centre, Altrecht GGz Utrecht The Netherlands
11. Pro Persona Ede The Netherlands
12. GGZ Oost Brabant Oss Oss The Netherlands
13. IPGGZ Veendam The Netherlands