[Feng, Xuezhen; Wang, Mingqing; Pan, Yuxi; Yang, Ruijie] Department of Radiation Oncology, Peking University Third Hospital, Haidian, China
[Lin, Xinyan] School of Physics, Beihang University, Beijing, Beijing Municipality, China
[Li, Can] Institute of Operations Research and Information Engineering, Beijing University of Technology, Beijing, Beijing Municipality, China
[Zuo, Guoping] School of Nuclear Science and Technology, University of South China, Hengyang, Hunan Province, China
