1. Department of Gastrointestinal Surgery, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Xiamen, China
2. Department of Oncology, Renmin Hospital of Shiyan, Hubei University of Medicine, Shiyan, China
3. Department of Radiology, The First Affiliated Hospital of Xiamen University, Xiamen, China
4. Teaching and Research Section of Surgery, The First Clinical College of Fujian Medical University, Fuzhou, China