1. Department of Clinical Psychology; University of Amsterdam; Amsterdam The Netherlands
2. King Abdulaziz University; Jeddah Saudi Arabia
3. Department of Clinical Psychology and Psychotherapy; Babes-Bolyai University; Cluj-Napoca Romania
4. Mount Sinai School of Medicine, Department of Oncological Sciences; New York USA
5. KU Leuven, Leuven; Belgium and University of Amsterdam; Amsterdam The Netherlands
6. Maastricht University; Maastricht The Netherlands
7. Department of Clinical Psychology; VU University Amsterdam; Amsterdam The Netherlands
8. EMGO Institute for Health and Care Research; VU University and VU University Medical Centre; Amsterdam The Netherlands
9. Leuphana University; Lüneburg Germany
10. Department of Psychology; University of Trier; Trier Germany
11. Department of Behavioural Sciences and Learning, Swedish Institute for Disability Research; Linköping University; Linköping Sweden
12. Department of Clinical Neuroscience, Psychiatry Section; Karolinska Institutet; Stockholm Sweden
13. Academic Unit of Psychiatry, School of Social and Community Medicine; University of Bristol; Bristol UK
14. University of Valencia; Valencia Spain
15. Centre for Psychological Services Research, Department of Psychology; University of Sheffield; Sheffield UK
16. Institute of Clinical Psychology and Psychotherapy; University of Marburg, Marburg and Philipps-University Marburg; Marburg Germany
17. Department of Clinical Psychology and Psychotherapy; University of Bern; Bern Switzerland
18. Jaume I University; Castellón Spain
19. Department of Psychology; Stockholm University; Stockholm Sweden
20. Psychoeducation and Psychological Treatments Area, Barcelona Bipolar Disorders Unit, IDIBAPS-CIBERSAM; Institute of Neurosciences, Hospital Clinic; Barcelona Spain
21. Roehampton University; London UK
22. KU Leuven; Leuven Belgium
23. Boston University; Boston MA USA
24. Institute of Clinical Psychology and Psychotherapy; Technische Universität Dresden; Dresden Germany
25. Virginia Tech University; Blacksburg VA USA
26. Department of Psychiatry; VU University Medical Centre; Amsterdam The Netherlands