About the Authors

Zhuang Liu

Affiliation School of Public Health, China Medical University, Shenyang, Liaoning, China

Lei Tian

Affiliation Research Center for Medical Education, China Medical University, Shenyang, Liaoning, China

Qing Chang

Affiliation Department of Clinical Epidemiology, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China

Baozhi Sun

Affiliation Research Center for Medical Education, China Medical University, Shenyang, Liaoning, China

Yuhong Zhao

yuhongzhaocmu@126.com

Affiliation Department of Clinical Epidemiology, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: YHZ BZS. Data curation: ZL. Formal analysis: ZL LT. Funding acquisition: YHZ BZS. Investigation: LT QC. Methodology: ZL LT QC. Project administration: YHZ BZS. Resources: YHZ BZS. Software: ZL LT. Supervision: YHZ BZS. Validation: QC. Visualization: QC. Writing – original draft: ZL LT. Writing – review & editing: YHZ BZS.