1. Institute for Surgical Technology and Biomechanics (ISTB) University of Bern Bern Switzerland
2. Department of Visceral Surgery and Medicine Bern University Hospital University of Bern Bern Switzerland
3. Biomaterials Science Center University of Basel Basel Switzerland
4. Clinic for Visceral‐ and Thoracic Surgery Cantonal Hospital Winterthur Winterthur Switzerland
5. Faculty of Health Department of Human Medicine Universität Witten/Herdecke Witten Germany
6. University Institute of Diagnostic Interventional and Pediatric Radiology Bern University Hospital University of Bern Bern Switzerland