1. Department of Gastroenterology, The First Hospital of Shanxi Medical University , Taiyuan 030001 , China
2. Department of Gastroenterology, Shanxi Provincial People’s Hospital, The Fifth Hospital of Shanxi Medical University , Taiyuan 030012 , China
3. Department of Cardiology, The Second Hospital of Shanxi Medical University , Taiyuan 030001 , China
4. Department of Hepat-Bliary-Pancreatic Surgery, Shanxi Provincial People’s Hospital, The Fifth Hospital of Shanxi Medical University , Taiyuan 030012 , China
5. Department of Hepatology, The Third People’s Hospital of Taiyuan , Taiyuan 030000 , China
6. Institute of Loess Plateau, Shanxi University , Taiyuan 030006 , China