1. Department of Gastroenterology, Oslo University Hospital , Oslo , Norway
2. Department of Infectious Diseases, Akershus University Hospital , Lørenskog , Norway
3. Institute of Clinical Medicine, University of Oslo , Oslo , Norway
4. Department of Medicine, Lovisenberg Diaconal Hospital , Oslo , Norway
5. Unger-Vetlesen Institute, Lovisenberg Diaconal Hospital , Oslo , Norway
6. Department of Addiction Medicine, Oslo University Hospital , Oslo , Norway
7. Department for Research and Development in Mental Health, Akershus University Hospital , Lørenskog , Norway
8. Faculty of Health Sciences, Oslo Metropolitan University , Oslo , Norway
9. Department of Microbiology, Oslo University Hospital , Oslo , Norway
10. Department of Acute Medicine, Oslo University Hospital , Oslo , Norway
11. Department of Infectious Diseases, Oslo University Hospital , Oslo , Norway
12. ProLAR Nett , Søgne , Norway
13. Department of Research Support for Clinical Trials, Oslo University Hospital , Oslo , Norway