1. School of Clinical Medicine, Shandong Second Medical University, Weifang, China
2. Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China
3. Department of Anesthesiology, Ruijin Hospital Shanghai Jiaotong University School of Medicine, Shanghai, China
4. Department of Pain Medicine, the First Medical Center, Chinese PLA General Hospital, Beijing, China
5. Department of Emergency, The Affiliated Hospital of Qingdao University (Pingdu), Qingdao, China