1. Shenzhen Clinical Medical College, Guangzhou University of Chinese Medicine, Shenzhen, China.
2. Department of Intensive Care Unit, Longgang Central Hospital of Shenzhen, Shenzhen, China.
3. Department of Intensive Care Unit, General Hospital of Southern Theatre Command of PLA, Guangzhou, China.
4. Guangzhou University of Chinese Medicine, Guangzhou, China.
5. Department of Emergency Medicine, General Hospital of Southern Theatre Command of PLA, Guangzhou, China.