1. Department of Anatomical and Cellular Pathology; The Chinese University of Hong Kong; Hong Kong China
2. Li Ka Shing Faculty of Medicine; The University of Hong Kong; Hong Kong China
3. Department of Medicine and Therapeutics; The Chinese University of Hong Kong; Hong Kong China
4. Institute of Digestive Disease; Partner State Key Laboratory of Digestive Disease; The Chinese University of Hong Kong; Hong Kong China
5. Li Ka Shing Institute of Health Science; Sir Y.K. Pao Cancer Center; The Chinese University of Hong Kong; Hong Kong China