1. Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing 100069, China
2. Department of Retroperitoneal Tumors Surgery, Peking University International Hospital, Beijing 102206, China
3. Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing 100069, China
4. National Center for Clinical Medical Research of Digestive Diseases, Beijing 100069, China
5. School of Medical and Health Sciences, Edith Cowan University, Perth 6027, Australia
6. Bioyong (Beijing) Technology Co., Ltd., Beijing 100085, China
7. School of Life Sciences, Peking University, Beijing 100871, China