1. Department of Gastroenterology, Shanghai Tenth People's Hospital Tongji University School of Medicine Shanghai China
2. Department of Gastroenterology Shidong Hospital of Shanghai Shanghai China
3. Department of Gastroenterology, Putuo People's Hospital Tongji University School of Medicine Shanghai China
4. Shanghai Tenth Hospital School of Clinical Medicine of Nanjing Medical University Shanghai China
5. Department of Gastroenterology Zhongshan Hospital of Fudan University Shanghai China
6. Shanghai Institute of Liver Diseases Zhongshan Hospital of Fudan University Shanghai China
7. Shanghai Tongren Hospital Shanghai Jiaotong University School of Medicine Shanghai China
8. Department of Gastroenterology, Shanghai First People's Hospital Shanghai Jiaotong University School of Medicine Shanghai China