1. Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
2. Department of Infectious Diseases, Wuhan General Hospital of Guangzhou Military Command, Wuhan, Hubei, China
3. Center for Stem Cell Research and Application, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China