State Key Laboratory of Oncology in South China;
Department of Radiation Oncology;
Sun Yat-sen University Cancer Center;
Guangzhou;
Guangdong 510060;
P. R. China;
Department of Oncology;
Guangdong Second Provincial People's Hospital;
Guangzhou;
Guangdong 510060;
P. R. China;
Department of Head and Neck Surgery;
Sun Yat-sen University Cancer Center;
Guangzhou;
Guangdong 510060;
P. R. China;
Department of Oncology;
Sun Yat-sen University Cancer Center;
Guangzhou;
Guangdong 510060;
P. R. China;
Department of Surgery ICU;
Xiangtan Central Hospital;
Xiangtan;
Hunan 411100;
P. R. China;
Department of Clinical Medicine;
Zhongshan School of Medicine;
Sun Yat-sen University;
Guanqzhou;
Guanqdona 510080;
P. R. China.;