1. Department of Nosocomial Infection Management, Beijing Youan Hospital, Capital Medical University, Beijing, China
2. Department of Clinical Laboratory, Beijing Youan Hospital, Capital Medical University, Beijing, China
3. Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
4. Divison of Medical Affairs, Beijing Youan Hospital, Capital Medical University, Beijing, China
5. International Medical Department, Beijing Youan Hospital, Capital Medical University, Beijing, China