1. Department of Gastroenterology Copenhagen University Hospital Herlev Denmark
2. Department of Gatroenterology, Odense University Hospital, and Research Unit of Medical Gastroenterology, Department of Clinical Research University of Southern Denmark Odense Denmark
3. Department of Onchology Copenhagen University Hospital Herlev Denmark
4. Department of Hepatology and Gastroenterology Aarhus university Hospital Aarhus Denmark