[1] Shanghai Jiao Tong Univ, Sch Med, Xinhua Hosp, Dept Algol, Shanghai, Peoples R China
[2] Zhengzhou Univ, Affiliated Hosp 2, Dept Algol, Zhengzhou, Henan, Peoples R China
[3] Guizhou Med Univ, Affiliated Hosp, Dept Algol, Guiyang, Guizhou, Peoples R China
[4] Sun Yat Sen Univ, Zhongshan Sch Med, Dept Physiol, Pain Res Ctr, Guangzhou, Guangdong, Peoples R China
[5] Nanjing Univ, Sch Med, Nanjing Drum Tower Hosp, Dept Algol Med,Affiliated Hosp, Nanjing, Jiangsu, Peoples R China
[6] Chongqing Med Univ, Affiliated Hosp 1, Dept Algol, Chongqing, Peoples R China
[7] Fourth Mil Med Univ, Xijing Hosp, Dept Algol, Xian, Shaanxi, Peoples R China
[8] Shandong Univ, Shandong Prov Hosp, Dept Algol, Jinan, Shandong, Peoples R China
[9] China Med Univ, Affiliated Hosp 1, Dept Algol, Shenyang, Liaoning, Peoples R China
[10] Cent S Univ, Xiangya Hosp 3, Dept Algol, Changsha, Hunan, Peoples R China
[11] Sichuan Univ, West China Hosp, Dept Algol, Chengdu, Sichuan, Peoples R China
[12] Kunming Med Univ, Affiliated Hosp 2, Dept Algol, Kunming, Yunnan, Peoples R China
[13] Gen Hosp Armed Police Force, Dept Spinal Surg, Beijing, Peoples R China
[14] Capital Med Univ, Beijing Tian Tan Hosp, Dept Algol, Beijing, Peoples R China