1 Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu 610041, China.
2 Department of Gastroenterology, Renji Hospital, Shanghai JiaoTong University School of Medicine, Shanghai Institute of Digestive Disease, Shanghai 200127, China.
3 Liver Research Center, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing 100050, China.
4 Department of Infectious Diseases, Institute for Viral Hepatitis, the Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China.