1. Department of Radiotherapy, The First Affiliated Hospital of Guangxi Medical University, no. 6 Shuangyong Rd, Nanning, Guangxi Zhuang Autonomous Region, 530021, PR China
2. Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, no. 6 Shuangyong Rd, Nanning, Guangxi Zhuang Autonomous Region, 530021, PR China
3. Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, no. 6 Shuangyong Rd, Nanning, Guangxi Zhuang Autonomous Region, 530021, PR China
4. Department of Pathology, Redcross Hospital of Yulin city, no. 1 Jinwang Rd, Yuzhou District, Yulin City, Guangxi Zhuang Autonomous Region, 537000, PR China
5. Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, no. 6 Shuangyong Rd, Nanning, Guangxi Zhuang Autonomous Region, 530021, PR China