1. Central Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
2. Department of Colorectal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
3. Department of General Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
4. Department of Gastroenterology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China