1. Department of Anesthesiology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
2. The First Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China
3. Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
4. Department of Neurosurgery, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China