[1] Shanghai Jiao Tong Univ, Shanghai Peoples Hosp 9, Dept Oral & Maxillofacial Head & Neck Oncol, Coll Stomatol,Sch Med, Shanghai 200000, Peoples R China
[2] Inner Mongolia Med Univ, Affifiliated Hosp, Dept Orthoped, Hohhot North St, Hohhot 010050, Inner Mongolia, Peoples R China