1. Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi’ an, China,
2. Department of Emergency, The Second Affiliated Hospital of Dalian Medical University, Dalian, China,
3. Department of Anesthesiology, State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, China, and
4. Institute of Neurosciences, School of Life Sciences and Biotechnology, Jiao Tong University, Shanghai, China