1. Department of General Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
2. These authors contributed equally to this work.
3. Department of Operating Room, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
4. Department of Gastroenterology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
5. Radiotherapy and chemotherapy department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China