1. Department of Gastroenterology and Hepatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
2. Department of Pathology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
3. Center of Hepato-Pancreato-Biliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
4. State Key Laboratory of Oncology in Southern China, Department of Medical Imaging, Sun Yat-sen University Cancer Center, Guangzhou, China.
5. Department of Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.