[Cai, Jun; Chi, Xinjin; Xia, ZY; Wu, Shan; Yao, Hui; Wang, Yiheng; Yu, Xiaofang] Sun Yat Sen Univ, Affiliated Hosp 3, Dept Anesthesiol, Guangzhou 510630, Guangdong, Peoples R China.
[Yu, Xiaofang] Fujian Prov Hosp, Dept Anesthesiol, Fuzhou 350001, Fujian, Peoples R China.
[Jin, Yi] Sun Yat Sen Univ, Affiliated Hosp 3, Dept Pathol, Guangzhou 510630, Guangdong, Peoples R China.
[Wang, Yiheng] Univ South China, Affiliated Hosp 1, Dept Anesthesiol, Hengyang 421001, Hunan, Peoples R China.
[Xia, Zhengyuan] Wenzhou Med Univ, Affiliated Hosp 2, Dept Anesthesiol, Wenzhou 325027, Zhejiang, Peoples R China.