1 Department of Microbiology and Center of Infectious Disease, School of Basic Medical Sciences, Peking University, Beijing, China.
2 Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University and, Clinical Research Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
3 Liver Disease Center of Naval 905 Hospital and, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.