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, China
2. Department of Radiation Oncology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
3. Department of Radiation Oncology, Fujian Cancer Hospital/Fujian Medical University Cancer Hospital, Fuzhou, China
4. Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital/National Clinical Research Center for Cancer, Tianjin, China
5. Department of Radiation Oncology, Anyang Cancer Hospital, Anyang, China
6. Department of Radiation Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
7. Department of Oncology, Tengzhou Central People’s Hospital, Tengzhou, China
8. Department of Radiation Oncology, Beijing Hospital, National Center of Gerontology, Beijing, China
9. Department of Radiation Oncology, Affiliated Hospital of Hebei University, Baoding, China
10. Department of Radiation Oncology, PLA Army General Hospital, Beijing, China
11. Department of Radiation Oncology, Cancer Hospital Chinese Academy of Medical Sciences, Shenzhen Center, Shenzhen, China