1. Unger-Vetlesen Institute, Lovisenberg Diaconal Hospital, Oslo, Norway
2. Department of Clinical Support, Lovisenberg Diaconal Hospital, Oslo, Norway
3. Faculty of Health Science, Oslo Metropolitan University, Oslo, Norway
4. Department of Research, Lovisenberg Diaconal Hospital, Oslo, Norway
5. Gastroenterology Translational Research Division, Arnold Palmer Hospital Specialty Diagnostic Laboratory, Orlando, Florida, USA
6. Institute of Clinical Medicine, University of Oslo, Oslo, Norway