About the Authors

Wei Nie

Contributed equally to this work with: Wei Nie, Bing Li

Bing Li

Contributed equally to this work with: Wei Nie, Bing Li

Qing-yu Xiu

xiu_qingyu@126.com

Affiliation Department of Respiratory Disease, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WN BL. Performed the experiments: WN BL. Analyzed the data: WN BL QYX. Contributed reagents/materials/analysis tools: WN BL. Wrote the paper: WN BL QYX.