1. State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases Xijing Hospital of Digestive Diseases Fourth Military Medical University Xi'an Shaanxi P. R. China
2. Department of Gastroenterology Tangdu Hospital Fourth Military Medical University Xi'an Shaanxi P. R. China
3. BioChain (Beijing) Science & Technology Inc. Beijing P. R. China
4. Department of Medicine and Therapeutics, Institute of Digestive Disease Prince of Wales Hospital The Chinese University of Hong Kong Hong Kong P. R. China
5. Department of Endoscopy Center Peking University Cancer Hospital & Institute Key Laboratory of Carcinogenesis and Translational Research Ministry of Education Beijing P. R. China
6. Department of Gastroenterology the Second Affiliated Hospital Xi'an Jiaotong University Xi'an Shaanxi P. R. China
7. Department of Surgical Oncology and General Surgery Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors The First Affiliated Hospital of China Medical University Shenyang Liaoning P. R. China
8. Department of Gastric Surgery Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin's Clinical Research Center for Cancer Tianjin P. R. China
9. Department of Gastroenterology Zhongshan Hospital Xiamen University Xiamen Fujian P. R. China
10. Department of Gastrointestinal Surgery Peking University People's Hospital Beijing P. R. China
11. Department of Endoscope The First Hospital Affiliated to China Medical University Shenyang Liaoning P. R. China
12. Department of Health Statistics School of Preventive Medicine Fourth Military Medical University Xi'an Shaanxi P. R. China