About the Authors
Department of Gastroenterology, NanLou Clinic, General Hospital of PLA, Beijing, China
International Joint Cancer Institute, The Second Military Medical University, Shanghai, China
The authors have declared that no competing interests exist.
Conceived and designed the experiments: SWC BYW SPX. Performed the experiments: SWC BYW SPX LY YG JBW DHW. Analyzed the data: SPX LY YG. Contributed reagents/materials/analysis tools: SWC KXF DHW. Wrote the paper: SWC SPX KXF DHW.