1. Department of Medicine Hualien Tzu Chi HospitalBuddhist Tzu Chi Medical Foundation and Tzu Chi University Hualien Taiwan
2. Division of Gastroenterology Washington University School of Medicine St Louis Missouri USA
3. Department of Medical Research Hualien Tzu Chi HospitalBuddhist Tzu Chi Medical Foundation Hualien Taiwan
4. Digestive Physiology Hospital E Herriot Hospices Civils de LyonUniversité de Lyon Lyon France