Affiliation: | 1. Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China;3. Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China;4. State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China;6. Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea;5. Insitute of Gastroenterology, Yonsei University College of Medicine, Seoul, South Korea |