[1] Peking Univ, Canc Hosp & Inst, Key Lab Carcinogenesis & Translat Res, Beijing Canc Hosp,Minist Educ,Dept Radiotherapy, Beijing, Peoples R China
[2] Yale Univ, Dept Therapeut Radiol, New Haven, CT USA
[3] Hofstra North Shore LIJ, Sch Med, Dept Radiat Med, Hempstead, NY USA
[4] Peking Univ, Beijing Key Lab Med Phys & Engn, Beijing, Peoples R China