1. Department of Pain Management, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
2. Department of Emergency Internal Medicine, Shanghai Jiading Hospital of Traditional Chinese Medicine, Shanghai 201800, P.R. China
3. Department of Pain Management, Shanghai Jiading Hospital of Traditional Chinese Medicine, Shanghai 201800, P.R. China
4. Injury Department of Orthopedics, Shanghai Jiading Hospital of Traditional Chinese Medicine, Shanghai 201800, P.R. China
5. Department of Intensive Care Unit, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
6. Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China