About the Authors

Xuqin Jiang

Affiliation Department of Respiratory Medicine, Anhui Provincial Hospital, Hefei, China

Xiaodong Mei

hfmxd@sina.com

Affiliation Department of Respiratory Medicine, Anhui Provincial Hospital, Hefei, China

Di Feng

Affiliation Department of Respiratory Medicine, Anhui Provincial Hospital, Hefei, China

Xiaojing Wang

Affiliation Department of Respiratory Medicine, Anhui Provincial Hospital, Hefei, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XJ XM. Performed the experiments: XJ XM DF XW. Analyzed the data: XJ XM DF XW. Contributed reagents/materials/analysis tools: XJ XM DF XW. Wrote the paper: XJ XM.