1. Department of Emergency, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
2. The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
3. Department of Critical Care Medicine, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China