1. Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
2. Department of Gastroenterology, Adesh Medical College and Hospital, Kurukshetra, Haryana, India
3. Department of Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
4. Department of Gastroenterology and Hepatology, University Hospitals Leuven and Imelda General Hospital, Bonheiden, Belgium
5. Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
6. Department Medical and Surgical Sciences, University of Foggia, Foggia, Italy
7. Department of Gastroenterology, “Konstantopoulio-Patision” General Hospital of Nea Ionia, Athens, Greece
8. Endoscopy Center, Osaka Medical College, Osaka Medical and Pharmaceutical University Hospital, Osaka, Japan
9. Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium