| Authors: |
Liu L; Department of Pain Management, Shandong Provincial Hospital, Shandong University, Jinan, China., Zhang WJ; Department of Pain Management, Shandong Provincial Hospital, Shandong University, Jinan, China., Xu SX; Department of Pain Management, Shandong Provincial Hospital, Shandong University, Jinan, China., Guo WS; Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China., Yan RR; Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China., Jiang XH; Department of Pain Management, Shandong Provincial Hospital, Shandong University, Jinan, China., Li SY; Department of Pain Management, Shandong Provincial Hospital, Shandong University, Jinan, China., Sun T; Department of Pain Management, Shandong Provincial Hospital, Shandong University, Jinan, China.; Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China. |