1. Department of Visceral, Transplant and Thoracic Surgery; Innsbruck Medical University; Innsbruck Austria
2. Department for General, Visceral and Transplantation Surgery; Charité Universitätsmedizin; Berlin Germany
3. Department of Anatomy, Histology and Embryology; Division for Clinical and Functional Anatomy; Innsbruck Medical University; Innsbruck Austria
4. Department of Abdominal Surgery; University Hospitals Gasthuisberg; Leuven Belgium
5. National Centre for Bowel Research and Surgical Innovation; Centre for Digestive Diseases, Barts and the London School of Medicine and Dentistry; Queen Mary University London; London UK