1. Department of Gastroenterology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China.
2. Department of Interventional Radiology, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, China.
3. Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan.
4. Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, China.