1. Department of Surgery, Cantonal Hospital Winterthur, Winterthur, Switzerland
2. University of Basel, Basel, Switzerland
3. Human Nutrition, School of Medicine, Dentistry and Nursing, Glasgow Royal Infirmary, Glasgow, UK
4. PIBD Research Center, Pediatric Gastroenterology and Nutrition Unit, Wolfson Medical Center, Holon, Israel
5. Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
6. Department of Surgery, Assaf Harofeh Medical Center, Tel Aviv, Israel
7. Department of Surgery, University of Toronto/ Mount Sinai Hospital, Toronto, ON, Canada
8. Department of Gastroenterology and Hepatology, University Medical Centre Groningen, Groningen, The Netherlands
9. Department of Medicine, Division of Gastroenterology, Mater Dei Hospital, Msida, Malta
10. Division of Gastroenterology, University Hospital of Ioannina, Ioannina, Greece
11. Colorectal Surgery Unit, Catholic University of Paraná [PUCPR], Curitiba, Brazil
12. Department of Gastroenterology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Trust, Cambridge, UK
13. Department of Surgery, Kantonsspital Winterthur, Winerthur, Switzerland
14. Department of Nutritional Sciences, King’s College London, London, UK
15. Department of Nutrition and Dietetics, Amsterdam UMC, VU University Medical Centre, Amsterdam, The Netherlands
16. Department of Colorectal Surgery, Wolverhampton Hospital, Wolverhampton, UK
17. Department of Nutrition and Dietetics, Guy’s and St Thomas’ NHS Foundation Trust, London, UK