1. Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
2. Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
3. Center of Hepatopbiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
4. Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
5. Gilead Sciences, Inc., Foster City, California, USA
6. Division of Interventional Ultrasound, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China