1. Department of Surgical Gastroenterology and Transplantation, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark;
2. Department of Health and Social Context, The National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark;
3. Survivorship, Danish Cancer Society Reseach Center, Copenhagen, Denmark;
4. Abdominal Centre, Copenhagen University Hospital Rigshospitalet, Copenhagen University, Copenhagen, Denmark;
5. Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark