1. Department of Anesthesiology, West China Hospital Sichuan University Chengdu China
2. Department of Anesthesiology Pi du District People's Hospital Chengdu China
3. Department of Anesthesiology Sichuan Provincial People's Hospital Chengdu China
4. Department of Anesthesiology The Second Xiangya Hospital of Central South University Changsha China
5. Department of Anesthesiology The Third Xiangya Hospital of Central South University Changsha China
6. Department of Anesthesiology The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University Wenzhou China
7. Department of Anesthesiology, Union Hospital, Tongji Medical College Huazhong University of Science and Technology Wuhan China
8. Department of Anesthesiology Affiliated Hospital of Zunyi Medical College Zunyi China
9. Department of Anesthesiology, Xiangya Hospital Central South University Changsha China
10. Department of Anesthesiology Tianjin Medical University General Hospital Tianjin China
11. Department of Anesthesiology General Hospital of Ningxia Medical University Yinchuan China