[Dong, Zhao; Zhang, Shuhua; Yu, Shengyuan] Chinese Peoples Liberat Army Gen Hosp, Dept Neurol, Med Ctr 1, Beijing, Peoples R China.
[Xu, Suiyi] Shanxi Med Univ, Dept Neurol, Headache Ctr, Hosp 1, Taiyuan, Peoples R China.
[Chen, Chunfu] Shandong First Med Univ, Dept Neurol, Shandong Prov Hosp, Jinan, Peoples R China.
[Xue, Zhanyou] Suzhou BOE Hosp, Dept Rehabil, Suzhou, Peoples R China.
[Yao, Yuanrong] Guizhou Prov Peoples Hosp, Dept Neurol, Anshun, Guizhou, Peoples R China.
