[1] Shandong Univ, Qilu Hosp, Dept Neurol, Jinan, Shandong, Peoples R China
[2] Taishan Med Col, Peoples Hosp Liaocheng, Dept Neurol, Liaocheng, Shandong, Peoples R China
[3] Liaocheng Univ, Hosp 1, Dept Neurol, Liaocheng, Shandong, Peoples R China
[4] Shandong Univ, Qilu Hosp, Dept Neurosurg, Jinan, Shandong, Peoples R China
[5] Taishan Med Coll, Peoples Hosp Liaocheng, Dept Cent Lab, Liaocheng, Shandong, Peoples R China