[1] Shandong Univ, Qilu Hosp, Dept Neurol, Jinan, Peoples R China
[2] Shandong Univ, Qilu Hosp, Neuromuscular Ctr, Jinan, Peoples R China
[3] Shandong Univ, Qilu Hosp, Dept Neurol, Qingdao, Peoples R China
[4] Shandong Univ, Brain Sci Res Inst, Jinan, Peoples R China