1. Gastroenterology and Hepatology, Erasmus Medical Center, Rotterdam, Netherlands
2. Gastroenterology and Hepatology, Amsterdam UMC Locatie AMC, Amsterdam, Netherlands
3. Gastroenterology and Hepatology, AZ Sint-Jozef Turnhout, Turnhout, Belgium
4. Gastroenterology and Hepatology, Second Military Medical University, Shanghai, China
5. Endoscopy Center, Shanghai Eastern Hepatobiliary Hospital, Shanghai, China
6. Department of Surgery, Helsinki University Central Hospital, Helsinki, Finland
7. Department of Gastroenterology, Nottingham City Hospital NHS Trust, Nottingham, United Kingdom of Great Britain and Northern Ireland
8. NIHR Nottingham Digestive Diseases Biomedical Research Unit, Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, United Kingdom of Great Britain and Northern Ireland