1. District Psychiatric Center Follo, Group Therapy Section, Akershus University Hospital, Lørenskog, Norway
2. Department for National and Regional Functions, Division of Mental Health and Addiction, NETWORK for Personality Disorders, Section for Personality Psychiatry and Specialized Treatments, Oslo University Hospital, Oslo, Norway
3. Institute of Clinical Medicine, University of Oslo, Oslo, Norway
4. Department for National and Regional Functions, Division of Mental Health and Addiction, National Advisory Unit for Personality Psychiatry, Section for Personality Psychiatry and Specialized Treatments, Oslo University Hospital, Oslo, Norway
5. Department of Psychology, University of Oslo, Oslo, Norway
6. Nic Waals Institute, Lovisenberg Deacon Hospital, Oslo, Norway
7. Department for Research and Innovation, Division of Mental Health and Addiction, Section for Treatment Research, Oslo University Hospital, Oslo, Norway
8. Department of Interdisciplinary Health Sciences, Institute of Health and Society, University of Oslo, Oslo, Norway
9. Norwegian Centre for E-health Research, Troms, Norway
10. Department for Research and Innovation, Division of Mental Health and Addiction, Section for Clinical Addiction Research, Oslo University Hospital, Oslo, Norway
11. Department for National and Regional Functions, Division of Mental Health and Addiction, Outpatient Clinic for Specialized Treatment of Personality Disorders, Section for Personality Psychiatry and Specialized Treatments, Oslo University Hospital, Oslo, Norway
12. Department for National and Regional Functions, Division of Mental Health and Addiction, Section for Personality Psychiatry and Specialized Treatments, Oslo University Hospital, Oslo, Norway