[Shi, Meng Meng; Xu, Xiao Fan; Guo, Dong Min; Cao, Wen Yu] Univ South China, Hengyang Med Sch, Clin Anat & Reprod Med Applicat Inst, Hengyang, Hunan, Peoples R China.
[Sun, Qiu Min] Yiyang Med Coll, Dept Nursing, Yiyang, Hunan, Peoples R China.
[Luo, Mingying] Kunming Med Univ, Dept Anat & Histol & Embryol, Kunming, Yunnan, Peoples R China.
[Zhong, Xiao Lin; Liu, Dan Dan; Chen, Ling] Univ South China, Affiliated Hosp 1, Inst Clin Med, Hengyang, Hunan, Peoples R China.
[Xu, Yang] Univ South China, Hengyang Med Sch, Inst Neurosci, Hengyang, Hunan, Peoples R China.