1. Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangdong 510515, China
2. Department of Oncology, Provincial Clinical College of Fujian Medical University, Fujian Provincial Hospital, Fujian 350001, China
3. The Second Clinical Medical College of Fujian Medical University, Fujian 362000, China
4. Department of General Surgery of the 907th Hospital, Nanping 353000, Fujian Province, China