1. Clinical College, Fujian Medical University, Fuzhou, Fujian, China (mainland)
2. Department of Gastroenterological Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China (mainland)
3. Department of Colorectal Surgery, Union Hospital, Fujian Medical University, Fuzhou, Fujian, China (mainland)
4. Department of General Surgery, Union Hospital, Fujian Medical University, Fuzhou, Fujian, China (mainland)