1. Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Key Laboratory of Digestive Health, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Beijing, 100050, P. R. China
2. CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
3. Department of Gastroenterology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi Province 030001, P. R. China
4. Department of Vascular Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, P. R. China
5. Weiqiao-UCAS Science and Technology Park, Binzhou Institute of Technology, Binzhou City, Shandong Province 256606, P. R. China
6. University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China