1. Department of Surgery, Skåne University Hospital, Malmö, Sweden.
2. Digestive Disease Center, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark.
3. Department of Pathology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark.
4. Copenhagen Wound Healing Center, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark.
5. Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.