1. State Key Laboratory of Molecular Oncology, Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
2. Department of Radiation Oncology, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Hangzhou, China
3. Department of Radiation Oncology, Guizhou Cancer Hospital, Guiyang, China
4. Department of Radiation Oncology, Tumor Hospital of Hebei Province, Shijiazhuang, China
5. Department of Radiation Oncology, Peking University Third Hospital, Beijing, China
6. Department of Radiation Oncology, Beijing Hospital, Beijing, China
7. Division of Biostatistics and Bioinformatics, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
8. Department of Radiation Oncology, Beijing Cancer Hospital, Beijing, China