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 Oncology First Affiliated Hospital of Harbin Medical College Harbin China
3. Department of Radiation Oncology Henan Cancer Hospital Zhengzhou China
4. Department of Radiation Oncology Cancer Hospital Chinese Academy of Medical Sciences Shenzhen China