1. Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, P.R. China
2. Department of General Surgery, The Affiliated Hospital of Nantong University, Nantong, Jiangsu, P.R. China
3. Department of Gastrointestinal Surgery, The Affiliated Yixing Hospital of Jiangsu University, Yixing, Jiangsu, P.R. China
4. Department of Gastrointestinal Surgery, Taizhou People's Hospital, Taizhou, Jiangsu, P.R. China
5. Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, Jiangsu, P.R. China