1. Department of Internal Medicine, Wellstar Cobb Medical Center, Austell, Georgia, USA
2. Department of Gastroenterology, Northern Hospital, Epping, Melbourne, Australia
3. Department of Surgical Science, University Tor Vergata, Rome, Italy
4. Department of Gastroenterology, Whipps Cross University Hospital, Barts Health NHS Trust, London, UK
5. Department of Colorectal Surgery, Vall d’Hebron University Hospital, Universitat Autonoma de Barcelona UAB, Barcelona, Spain
6. Department of Advanced Medical and Surgical Sciences, Universitá degli Studi della Campania ‘Luigi Vanvitelli’, Naples, Italy
7. Department of Medicine, University of Melbourne
8. Department of Gastroenterology, Royal Melbourne Hospital, Parkville, Melbourne, Australia