[Li, Chen; Zhao, Qiang; Zhang, Zhiwei; Liu, Lu] Univ South China, Dept Pathol, Affiliated Hosp 1, Hengyang 421001, Hunan, Peoples R China.
[Xiao, Juan] Univ South China, Dept Otorhinolaryngol, Affiliated Hosp 2, Hengyang 421001, Hunan, Peoples R China.
[Wu, Shihua] Second Hosp Shaoyang Coll, Dept Pathol, Hunan, Shaoyang 422000, Hunan, Peoples R China.
[Zhang, Zhiwei; Zeng, Xuemei] Univ South China, Canc Res Inst, Key Lab Canc Cellular & Mol Pathol Hunan Prov, Hengyang Med Coll, Hengyang 421001, Hunan, Peoples R China.
[Zhao, Qiang] Univ South China, Dept Pathol, Affiliated Hosp 1, 69 Chuanshan Rd, Hengyang 421001, Hunan, Peoples R China.