1. Emergency Medicine Clinical Research Center of Beijing Chao‑Yang Hospital, Capital Medical University, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing 100020, P.R. China
2. Medical Affairs Office, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, P.R. China
3. Department of Emergency Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
4. Department of Infectious Diseases (Fever Clinic), Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, P.R. China