1. Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
2. Key Laboratory for Gastrointestinal Diseases of Gansu Province, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
3. Gansu Wuwei Tumor Hospital, Wuwei, Gansu, China
4. Gansu Second Provincial People’s Hospital, Lanzhou, Gansu, China
5. School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, China
6. Wuwei Liangzhou Hospital, Wuwei, Gansu, China
7. Wuwei People's Hospital, Wuwei, Gansu, China
8. Minqin People's Hospital, Minqin, Gansu, China
9. Lanzhou University Second Hospital, Lanzhou, Gansu, China
10. Surgical Oncology Department, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
11. School of Public Health, Lanzhou University, Lanzhou, Gansu, China
12. Wuwei City Center for Disease Control and Prevention, Wuwei, Gansu, China
13. Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
14. Storr Liver Centre, Westmead Institute for Medical Research, University of Sydney and Westmead Hospital, Westmead, NSW, Australia