[Tang, Qing-ping] Hunan Univ Chinese Med, Brain Hosp Hunan Prov, Dept Rehabil, Changsha 410007, Hunan, Peoples R China.
[Tang, Qing-ping; Wu, Li-xiang] Cent S Univ, Sch Basic Med Sci, Dept Physiol, Changsha 410078, Hunan, Peoples R China.
[Shen, Qin] Cent S Univ, Xiangya Hosp, Dept Neurol, Changsha 410008, Hunan, Peoples R China.
[Feng, Xiang-ling; Liu, Hui] Cent S Univ, Xiangya Sch Med, Canc Res Inst, Changsha 410078, Hunan, Peoples R China.
[Wu, Bei] Cent S Univ, Xiangya Hosp, Dept Otolaryngol, Changsha 410008, Hunan, Peoples R China.