[1]RuiJin Hosp, Dept Radiat Oncol, Shanghai, Peoples R China.
[2]Shanghai Jiao Tong Univ, Sch Med, Ruijin Hosp, Dept Radiat Oncol, Shanghai, Peoples R China.
[3]RuiJin Hosp, Dept Radiol, Shanghai, Peoples R China.
[4]Fudan Univ, Shanghai Canc Ctr, Shanghai, Peoples R China.
[5]Inst Curie, Paris, France.