1. National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for CancerTianjin Medical University Cancer Institute and Hospital Tianjin China
2. Radiotherapy DepartmentTianjin Medical University General Hospital Tianjin China
3. Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear MedicineChinese Academy of Medical Sciences & Peking Union Medical College Institute of Radiation Medicine Tianjin China
4. Chinese Academy of Medical Sciences & Peking Union Medical College Institute of Biomedical EngineeringGeriatric Health Engineering Research Center Tianjin China