1. Department of General Surgery, Taiyuan Central Hospital, Taiyuan 030009, Shanxi, P.R. China
2. University of Shanghai for Science and Technology, Shanghai 200093, P.R. China
3. Department of General Surgery, Peking University First Hospital, Beijing 100034, P.R. China
4. Department of General Surgery, Pancreatic Disease Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
5. Research Institute of Pancreatic Diseases, Shanghai Key Laboratory of Translational Research for Pancreatic Neoplasms, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
6. State Key Laboratory of Oncogenes and Related Genes, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China