1. Department of Anesthesia and Pain Medicine, Guangzhou First People’s Hospital, Guangzhou, China
2. Department of Anesthesiology, Huizhou Central People’s Hospital, Huizhou, China
3. The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
4. The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Huiai Hospital, Guangzhou, China
5. Department of Emergency Medicine, The First Affiliated Hospital of Sun Yat-Sen University and Zhongshan Medical School, Sun Yat-Sen University, China
6. Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China