1. Department of Anesthesiology, Sanya Municipal Hospital, Sanya, China
2. Department of Anesthesiology, The University of Hong Kong, Hong Kong, China
3. Department of Anesthesiology, Stomatological Hospital of Chongqing Medical University, Chongqing, China
4. Department of Emergency and Intensive Care Unit, The First Affiliated Hospital of Hainan Medical University, Haikou, China
5. Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, China