About the Authors

Chen Yang

Roles Data curation, Formal analysis, Investigation, Writing – original draft

Affiliation Teaching Reform Class of 2016 of the First Clinical College, Changzhi Medical College, Shanxi, Changzhi, China

Xiao-Feng He

Roles Data curation, Formal analysis, Investigation, Resources, Supervision, Writing – review & editing

393120823@qq.com

Affiliation Institute of Evidence-based medicine, Heping Hospital Affiliated to Changzhi Medical College, Shanxi, Changzhi, China

Competing Interests

The authors have declared that no competing interests exist.