Institution: | 1. Department of Surgery, Chinese University of Hong Kong, , Hong Kong, China;2. Asian Institute of Gastroenterology, , Hyderabad, India;3. Department of Gastroenterology and Hepatology, Yong Loo Lin School of Medicine, National University of Singapore, , Singapore;4. Department of Surgery I, Oita Medical University, , Oita;5. Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, , Seoul, South Korea;6. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, , Tokyo, Japan |