[Li, Keyu; Zhu, Liangdong] First Hosp Changsha, Dept Resp & Crit Care Med, Changsha, Hunan, Peoples R China.
[Guo, Minfang] Hunan Normal Univ, Dept Hepatobiliary Surg, Affiliated Hosp 1, Changsha, Hunan, Peoples R China.
[Gan, Siyu] Hunan Univ Chinese Med, Sch Clin Med, Changsha, Hunan, Peoples R China.
[Chen, Xia; Chen, X; Fu, Yong] Hunan Univ Med, Dept Nephrol & Rheumatol Immunol, Affiliated Hosp 1, Hunan, Peoples R China.