1. Department of Pain Management, Xuanwu Hospital, Capital Medical University, Beijing, China
2. Department of Anesthesiology, Changzhou Tumor Hospital, Changzhou, Jiangsu, China
3. Department of Orthopedics, Beijing Rehabilitation Hospital Affiliated to Capital Medical University, Capital Medical University, Beijing, China
4. Department of Acupuncture & Moxibustion, Wuhan Hospital of Integrated Chinese & Western Medicine, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, Hubei, China
5. Department of Anesthesiology, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, Henan, China
6. Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
7. Department of Anesthesiology, Central People’s Hospital of Zhanjiang, Zhanjiang, China