1. Department of Gastroduodenal and Pancreatic Surgery, Translation Medicine Research Center of Liver Cancer, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
2. Graduate School, University of South China, Hengyang, Hunan, China
3. Laboratory of Digestive Oncology, Hunan Province Cancer Institute, Changsha, Hunan, China