[1] Beijing Univ Posts & Telecommun, Coll Artificial Intelligence, Beijing, Peoples R China
[2] Peking Univ, Dept Orthodont, Sch & Hosp Stomatol, Beijing, Peoples R China
[3] Tsinghua Univ, Dept Automat, Beijing, Peoples R China
[4] Beijing Univ Technol, Fac Informat Technol, Sch Software Engn, Beijing, Peoples R China
[5] Pharmacovigilance Res Ctr Informat Technol & Data, Xiamen, Fujian, Peoples R China