[Liu, Xinxin; Yang, Fengrui] Univ South China, Affiliated Huaihua Hosp, Dept Anesthesiol, 144 South Jinxi Rd, Huaihua 418000, Peoples R China.
[Chen, Kemin; Yang, Fengrui; Wang, Yuxia; Hou, Zixin; Qing, Jie] Univ South China, Dept Anesthesiol, Affiliated Hosp 1, Hengyang 421001, Peoples R China.
[Han, Mingming] Univ Sci & Technol China, Affiliated Hosp USTC 1, Dept Anesthesiol, Div Life Sci & Med, Hefei 230036, Anhui, Peoples R China.
[Han, Mingming] Johns Hopkins Univ, Dept Anesthesiol & Crit Care Med, Sch Med, Baltimore, MD 21287 USA.