1. Department of Infectious Diseases Akershus University Hospital Lørenskog Norway
2. Department of Gastroenterology Oslo University Hospital Oslo Norway
3. ProLAR Nett Søgne Norway
4. Unger‐Vetlesen Institute Lovisenberg Diaconal Hospital Oslo Norway
5. Norwegian National Advisory Unit on Concurrent Substance Abuse and Mental Health Disorders Innlandet Hospital Trust Brumunddal Norway
6. The Norwegian Directorate of Health Oslo Norway
7. Institute of Clinical Medicine University of Oslo Oslo Norway