1 Department of Pain Medicine, Xijing Hospital, Fourth Military Medical University, Xian, China.
2 Departments of Pain Management and Neurosciences, Lerner Research Institute and Anesthesiology Institute, Cleveland Clinic, Cleveland, Ohio, USA.
3 Neuroscience Research Institute, Peking University, Beijing, China.
4 Immediate Past National Director for Pain Management, Veterans Health Administration, Pain Medicine (Oxford University Press), 810 Vermont Ave NW, Washington, DC 20571.
5 Psychiatry and Anesthesiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
6 Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China.
7 Department of Pain Medicine, Tiantan Hospital, Capital Medical University, Beijing, China.
8 The Cancer Hospital and Center for Pain Medicine, Peking University, Beijing, China.
9 The American Academy of Pain Medicine, Swedish Medical Center, Seattle, Washington.
10 Swedish Pain Services, Swedish Medical Center, Seattle, Washington.
11 Occupational Medicine Services, Swedish Medical Center, Seattle, Washington.
12 The American Academy of Pain Medicine, Mayo Clinic, Rochester, Minnesota, USA.
13 Department of Neurology, Chinese PLA General Hospital, Beijing, China.
14 Department of Pain Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
15 Department of Pain Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China.
16 Department of Anesthesiology and Pain Medicine, Washington University School of Medicine, St Louis, Missouri, USA.
17 Department of Pain Medicine, Fourth Hospital of Hebei Medical University, Shijiazhuang, China.
18 Department of Pain Medicine, Xinhua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
19 Pain Management Center, Jinling Hospital, Medical School of Nanjing University, Nanjing, China.
20 Department of Pain Medicine, The First Affiliated Hospital, Nanchang University, Nanchang, China.
21 Department of Pain Medicine, The Third Xiangya Hospital of Central South University, Changsha, China.
22 Department of Pain Medicine, Shenzhen Nanshan Hospital, Guangdong Medical University, Shenzhen, China.
23 Department of Pain Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
24 Department of Pain Medicine, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China.