[1] Huazhong Univ Sci & Technol, Union Hosp, Tongji Med Coll, Dept Anesthesiol, Wuhan 430022, Peoples R China
[2] Univ South China, Affiliated Hosp 2, Dept Anesthesiol, Hengyang, Peoples R China
[3] Wuhan Univ, Zhongnan Hosp, Dept Anesthesiol, Wuhan 430071, Peoples R China
[4] Zunyi Med Univ, Dept Pain Med, Affiliated Hosp, Zunyi, Peoples R China
[5] First Peoples Hosp Jiangxia Dist, Dept Anesthesiol, Wuhan, Peoples R China