[Yan, Yin; Xia, Liu; Qin, Tong] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, Dept Oncol Breast Lymphoma Subspecialty, Hengyang, Hunan, Peoples R China.
[Derong, Tan] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, Dept Oncol Abdominal Tumor Subspecialty, Hengyang, Hunan, Peoples R China.
[Zhi, Xu] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, Dept Oncol Head & Neck Pelv Tumor Subspecialty, Hengyang, Hunan, Peoples R China.
[Yan, Y] 69 Chuanshan Rd, Hengyang City, Hunan Province, Peoples R China.