[Kuang, Wending; Zhang, Yang; Chen, Gang; Luo, Bang] Univ South China, Affiliated Hosp 2, Hengyang Med Sch, Dept Neurol, Hengyang, Peoples R China.
[Li, Yi] Univ South China, Hengyang Med Sch, Dept Diag, Hengyang, Peoples R China.
[Liu, Gang] Univ South China, Affiliated Hosp 2, Hengyang Med Sch, Dept Endocrinol, Hengyang, Peoples R China.
[Kuang, Shuangyu] Univ South China, Affiliated Hosp 2, Hengyang Med Sch, Dept GCP, Hengyang, Peoples R China.