1. Liver Research Center, Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
2. Department of Oncology Minimally Invasive Interventional Radiology, Beijing You-an Hospital, Capital Medical University, Beijing 100069, P.R. China
3. Department of Hepatopancreatobiliary and Splenic Medicine, The Affiliated Hospital of Medical College of Chinese People's Armed Police Force, Tianjin 300192, P.R. China
4. Department of Pathology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China