1. Department of Gastrointestinal Surgery, Tongji Hospital Medical College of Tongji University Shanghai 200065 P. R. China
2. Department of General Surgery, Changzheng Hospital Naval Medical University Shanghai 200003 P. R. China
3. State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine Shanghai Jiao Tong University 160 Pujian Road Shanghai 200127 P. R. China
4. School of Biomedical Engineering, and Med‐X Research Institute Shanghai Jiao Tong University Shanghai 200030 P. R. China
5. Stem Cell Research Center, Renji Hospital, School of Medicine Shanghai Jiao Tong University 160 Pujian Road Shanghai 200127 P. R. China