[Xing, Ying-Qi; Wang, Si-Bo; Liu, Kang-Ding; Yang, Yi] Jilin Univ, Dept Neurol, Ctr Neurosci, Hosp 1, 77 Xinmin St, Changchun 130000, Jilin, Peoples R China.
[Li, Ya-Jie] Ctr Hosp Jilin City, Diagnost Ultrasound Ctr, Jilin, Jilin, Peoples R China.
[Hu, Ming-Yi] Weifang Peoples Hosp, Dept Neurol, Weifang, Peoples R China.
[Lin, Pan] Second Hosp Longyan City, Dept Neurol, Longyan, Peoples R China.
[Guo, Rong] Peoples Hosp Liaoning Prov, Dept Neurol Funct, Shenyang, Liaoning, Peoples R China.