1. Norwegian National Advisory Unit on Concurrent Substance Abuse and Mental Health Disorders and Mental Health Division, Innlandet Hospital Trust, Brumunddal, Norway
2. Inland Norway University of Applied Sciences, Elverum, Norway
3. SERAF – Norwegian Centre for Addiction Research, University of Oslo, Oslo, Norway
4. District Psychiatric Centre Gjøvik, Innlandet Hospital Trust, Brumunddal, Norway
5. Faculty for Health Sciences, University College of Southeast Norway, Kongsberg, Norway
6. Program for Recovery and Community Health, School of Medicine, Yale University, New Haven, CT, USA