1. Department of Infectious Diseases and Hepatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
2. Department of Infectious Diseases, Henan Provincial People’s Hospital, Zhengzhou, Henan Province, China
3. Department of Infectious Diseases, The Affiliated Hospital of Yan’an University, Yan’an, Shaanxi Province, China
4. Treatment and Research Center for Infectious Diseases, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China