1. Group Therapy Team, Aust-Agder County Outpatient Unit; Sorlandet Hospital; Arendal Norway
2. Department of Psychology; University of Oslo; Oslo Norway
3. Department for Research and Development, Clinic for Mental Health and Addiction; Oslo University Hospital, Norway & Institute of Clinical Medicine, University of Oslo; Oslo Norway
4. Aust-Agder County Outpatient Unit, Sorlandet Hospital; Arendal Norway