Open AccessArticle by Weiming Han 1, Xiao Chang 1,2, Wencheng Zhang 3, Jingsong Yang 4, Shufei Yu 5, Wei Deng 2, Wenjie Ni 6, Zongmei Zhou 1, Dongfu Chen 1, Qinfu Feng 1, Jun Liang 1, Zhouguang Hui 1, Lvhua Wang 1, Shugeng Gao 7, Yu Lin 8, Xiaohui Chen 9, Junqiang Chen 8,* and Zefen Xiao 1,* 1 Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing...