1. Department of Gastroenterology, Chinese PLA General Hospital Hainan Hospital, Sanya, China
2. Department of Radiology, IR Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
3. Liver Center and Gastrointestinal Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
4. Department of Gastroenterology & Hepatology, Chinese PLA General Hospital First Medical Center, Beijing, China
5. Second Clinical Medical School, Southern Medical University, Guangzhou, China
6. Department of Medical Service, PLA General Hospital Hainan Hospital, Sanya, China