[Wang, Yi; Zhang, Yunsheng; Ge, Xin; Liu, Luogen] Univ South China, Clin Res Inst, Affiliated Hosp 2, Hengyang 421001, Peoples R China.
[Zhang, Yunsheng] Clin Res Ctr Breast & Thyroid Dis Prevent Hunan P, Hengyang 421001, Peoples R China.
[Li, Fang] Hunan Polytech Environm & Biol, Coll Nursing, Hengyang 421005, Peoples R China.
[Jiang, Hongtao] Univ South China, Dept Urol, Hosp 2, Hengyang 421001, Peoples R China.
[Hu, Hua] Univ South China, Canc Res Inst, Hosp 2, Hengyang 421001, Peoples R China.