[Tan, Yixi; Zuo, Jianhong; Lv, Xiu; Wen, Meiling; Li, Sai; Zhang, Chuhong; Yan, Hanxing; Hu, Tian; He, Sha] Univ South China, Affiliated Nanhua Hosp, Dept Oncol, Hengyang 421001, Hunan, Peoples R China.
[Zuo, Jianhong; Li, Sai] Univ South China, Sch Med, 28 Changsheng Rd, Hengyang 421001, Hunan, Peoples R China.
[Li, Jincheng] Shaoyang Univ, Sch Med, Shaoyang 422000, Hunan, Peoples R China.
[Lei, Mingsheng] Peoples Hosp Zhangjiajie City, Dept Resp & Crit Care Med, 192 Gu Yong Rd, Zhangjiajie 427000, Hunan, Peoples R China.