1. Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
2. Department of Radiation Oncology, Fujian Medical University Union Hospital, Fuzhou, China
3. Department of Radiation Oncology, Cancer Center of Guangzhou Medical University, Guangzhou, China
4. Department of Radiation Oncology, The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, China