1. Department of Gastroenterology and Hepatology People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital Zhengzhou Henan China
2. Department of Gastroenterology and Hepatology, Zhongshan Hospital Fudan University Shanghai China
3. Department of Medical Imaging People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital Zhengzhou Henan China
4. Department of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease Shanghai Jiao Tong University Shanghai China