1. Institute of Digestive Diseases Chinese PLA General Hospital Beijing China
2. Tongji Hospital Tongji Medical College of Huazhong University of Science and Technology Wuhan China
3. Oncology Center Johns Hopkins University Baltimore MD USA
4. State Key Laboratory of Pathogen and Biosecurity Beijing Institute of Microbiology and Epidemiology Beijing China
5. Department of Cell Biology Beijing Institute for Cancer Research Peking University School of Oncology Beijing China