1. Faculty of Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway;
2. Department of Medical Technology, SINTEF Technology and Society, Trondheim, Norway;
3. The Central Norway Regional Health Authority, Trondheim, Norway;
4. The Norwegian National Advisory Unit for Advanced Laparoscopic Surgery, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway;
5. The Norwegian National Advisory Unit for Ultrasound and Image-Guided Therapy, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway;
6. Department of Gastrointestinal Surgery, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway