About the Authors

Lei Pan

Contributed equally to this work with: Lei Pan, Manyuan Wang, Xiaomei Xie, Changjun Du

Affiliation Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Binzhou Medical University, Binzhou, China

Manyuan Wang

Contributed equally to this work with: Lei Pan, Manyuan Wang, Xiaomei Xie, Changjun Du

Affiliation School of Traditional Chinese Medicine, Capital Medical University, Beijing, China

Xiaomei Xie

Contributed equally to this work with: Lei Pan, Manyuan Wang, Xiaomei Xie, Changjun Du

Affiliation Department of Radiotherapy, Xuzhou Central Hospital, Affiliated Xuzhou Hospital of Medical College of Southeast University, Xuzhou, China

Changjun Du

Contributed equally to this work with: Lei Pan, Manyuan Wang, Xiaomei Xie, Changjun Du

Affiliation Department of Respiratory Medicine, Xuzhou Central Hospital, Affiliated Xuzhou Hospital of Medical College of Southeast University, Xuzhou, China

Yongzhong Guo

yongzhguo@sina.cn.

Affiliation Department of Respiratory Medicine, Xuzhou Central Hospital, Affiliated Xuzhou Hospital of Medical College of Southeast University, Xuzhou, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YZG. Performed the experiments: LP MYW XMX CJD. Analyzed the data: LP XMX YZG. Contributed reagents/materials/analysis tools: LP MYW CJD. Wrote the paper: MYW XMX YZG.