1. Department of Oncology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, People’s Republic of China
2. Department of Oncology, Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
3. Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People’s Republic of China
4. Key Laboratory of Early Prevention and Treatment for Regional High-Incidence-Tumor, Guangxi Medical University, Ministry of Education, Nanning, Guangxi, People’s Republic of China