[1] Shandong Univ Tradit Chinese Med, Clin Med Coll 1, Jinan 250013, Shandong, Peoples R China
[2] Shandong First Med Univ, Affiliated Hosp 1, Dept Neurol, Jinan 250013, Shandong, Peoples R China
[3] Shandong Prov Qianfoshan Hosp, Shandong Inst Neuroimmunol, Shandong Key Lab Rheumat Dis & Translat Med, Jinan 250013, Shandong, Peoples R China
[4] Shanghai Jiao Tong Univ, Shanghai Peoples Hosp 6, Sch Med, Dept Gastroenterol, Shanghai 200233, Peoples R China