[1] Xinxiang Med Univ & Dent technol, Sch Sanquan Coll, Xinxiang 453003, Peoples R China
[2] Northern Jiangsu Peoples Hosp, Dept Neurol, Yangzhou 225001, Peoples R China
[3] Zhejiang Chinese Med Univ, Sch Stomatol, Hangzhou 310053, Peoples R China
[4] Wenzhou Med Univ, Lishui Peoples Hosp, Dept Radiol, Affiliated Hosp 6, Lishui 323000, Peoples R China
[5] Youjiang Med Univ Nationalities, Dept Rehabil, Affiliated Hosp, Baise 533000, Peoples R China