1. Department of Neurology, Shanxi Provincial People's Hospital, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan 030012, Shanxi Province, China
2. Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, United Kingdom
3. The Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, Shanxi Province, China
4. Department of General Surgery, Shanxi Provincial People's Hospital, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan 030012, Shanxi Province, China
5. Department of Gastroenterology, Shanxi Provincial People's Hospital, The Affiliated People's Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China