[1] Univ Elect Sci & Technol China, Sichuan Canc Hosp & Inst, Sichuan Canc Ctr, Chengdu, Sichuan, Peoples R China
[2] Univ Elect Sci & Technol China Med, Chengdu, Peoples R China
[3] Univ Elect Sci & Technol China, Sichuan Canc Hosp & Inst, Ctr Canc Prevent Res, Sichuan Canc Ctr, Chengdu, Peoples R China