1. Guizhou Key Laboratory of Anesthesia and Organ Protection, Affiliated Hospital of Zunyi Medical University, 563000 Zunyi, China
2. Key Laboratory of Brain Science, Zunyi Medical University, 563000 Zunyi, China
3. Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, 563000 Zunyi, China
4. Department of Anesthesiology, Hospital of Stomatology, Zunyi Medical University, 563000 Zunyi, China