[1] Cent South Univ, Xiangya Hosp 2, Changsha, Peoples R China
[2] Changde Hosp, Xiangya Sch Med, Changde, Peoples R China
[3] Univ South China, Hengyang Med Sch, Affiliated Hosp 1, Hengyang, Peoples R China
[4] Univ South China, Hengyang Med Sch, Affiliated Hosp 2, Hengyang, Peoples R China
[5] Cent Hosp Yongzhou, Yongzhou, Peoples R China
[6] Cent South Univ, Xiangya Hosp 2, Dept Oncol, Changsha, Peoples R China