1. Department of Gastrointestinal Surgery; Institute of Digestive Surgery; National Key Laboratory of Biotherapy; West China Hospital, Sichuan University; Chengdu China
2. Department of Gastroenterology; West China Hospital, Sichuan University; Chengdu China
3. Division of Oncology; Department of Clinical and Experimental Medicine; Faculty of Health Sciences; University of Linköping; Linköping Sweden