About the Authors

Fang Dong

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

Affiliation Department of Plastic Surgery, Lanzhou University Second Hospital, Lanzhou, China

Lijuan Zheng

Roles Data curation, Formal analysis, Methodology, Project administration, Software, Validation

Affiliation Digestive Department, Gansu Provincial Hospital, Lanzhou, China

Xuanfen Zhang

Roles Conceptualization, Funding acquisition, Resources, Supervision, Writing – review & editing

zhang_xf@lzu.edu.cn

Affiliation Department of Plastic Surgery, Lanzhou University Second Hospital, Lanzhou, China

Competing Interests

The authors have declared that no competing interests exist.