About the Authors

Linying Peng

Contributed equally to this work with: Linying Peng, Liwei Xu

Affiliation Department of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, China

Liwei Xu

Contributed equally to this work with: Linying Peng, Liwei Xu

Affiliation Department of Gastrointestinal Surgery, The First Xiangya Hospital of Central South University, Changsha, China

Wen Ouyang

ouyangwen_123@163.com 

Affiliation Department of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LP LX WOY. Performed the experiments: LP LX. Analyzed the data: LP LX. Contributed reagents/materials/analysis tools: LX. Wrote the manuscript: LP LX. Final approval of the submitted version: WOY.