[1] Sun Yat-sen University Cancer Center,Department of Radiation Oncology
[2] State Key Laboratory of Oncology in South China,Nursing Department
[3] Collaborative Innovation Center for Cancer Medicine,Department of Radiation Oncology
[4] Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy,Department of Oncology
[5] Jinan Seventh People’s Hospital,Department of Medical Statistics and Epidemiology
[6] the Affiliated Hospital of Qingdao University,undefined
[7] the First People’s Hospital of Tianmen in Hubei Province,undefined
[8] School of Public Health,undefined
[9] Sun Yat-sen University,undefined