About the Authors

Fei Xiong

feiji19841984@gmail.com

Affiliation Department of Gastroenterology,Sichuan Academy of Medical Sciences &Sichuan Provincial People’s Hospital, Chengdu, Sichuan, PR China

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FX. Performed the experiments: FX. Analyzed the data: FX. Contributed reagents/materials/analysis tools: FX. Wrote the paper: FX. Correcting the manuscript: FX.