1. Innovation Centre, Division of Innovation and Development, Karolinska University Hospital, Stockholm, Sweden
2. Department of Surgery, Centre for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
3. CLINTEC, Karolinska Institutet, Stockholm Sweden
4. Department of Surgery, Odense University Hospital, J.B. Winsloews Vej 4, 5000 Odense, Denmark