1. Department of Hepatology Division 2 and Beijing Ditan Hospital, Capital Medical University, Beijing, China.
2. Department of Infectious Disease, Huaxin Hospital, The First Hospital of Tsinghua University, Beijing, China.
3. Department of Gynecology and Obstetrics, Beijing Ditan Hospital, Capital Medical University, Beijing, China.
4. Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China.
5. Department of Infectious Diseases, Haidian Hospital, Beijing Haidian Section of Peking University Third Hospital, Beijing, China.