Affiliation: | †Department of Radiation Oncology, Cancer Center, Sun Yat-sen University, Guangzhou, People's Republic of China;‡Imaging Diagnosis and Interventional Center, Cancer Center, Sun Yat-sen University, Guangzhou, People's Republic of China;*State Key Laboratory of Oncology in Southern China, Guangzhou, People's Republic of China;§Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China |