About the Authors

Ning Xia

Affiliation Department of Respiratory Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China

Hao Wang

Affiliation Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China

Xiuhong Nie

xiuhongnie@outlook.com

Affiliation Department of Respiratory Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XHN NX. Performed the experiments: NX HW. Analyzed the data: NX HW. Contributed reagents/materials/analysis tools: NX HW. Wrote the paper: NX XHN.