1. Gastroenterology and Hepatology Unit, Division of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
2. Nanthana-Kriangkrai Chotiwattanaphan Institute of Gastroenterology and Hepatology, Songklanagarind Hospital, Hat Yai, Songkhla, Thailand
3. Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
4. Division of Gastroenterology and Hepatology, Leuven University Hospitals, Leuven, Belgium