1. The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong
2. Department of Global Health, School of Public Health, The Peking University, Beijing, China
3. School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
4. Department of Surgery, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong
5. Division of Gastroenterology, Department of Medicine, NYU Langone Health, New York, New York