1. State Key Laboratory of Molecular Oncology and 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, People’s Republic of China
2. Division of Biostatistics and Bioinformatics, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD
3. Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
4. Department of Radiation Oncology, Beijing Hospital, Beijing, China
5. Department of Radiation Oncology, Zhejiang Cancer Hospital, Hangzhou, China