About the Authors

Yanan Lian

Roles Conceptualization, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology Intensive Care Unit, Northwest Women’s and Children’s Hospital, Xi’an City, Shaanxi Prov, China

Yanxiang Lv

Roles Data curation, Investigation

Affiliation Department of Obstetrics and Gynecology Intensive Care Unit, Northwest Women’s and Children’s Hospital, Xi’an City, Shaanxi Prov, China

Yuan Qiao

Roles Data curation, Investigation

Affiliation Department of Obstetrics and Gynecology Intensive Care Unit, Northwest Women’s and Children’s Hospital, Xi’an City, Shaanxi Prov, China

Tongqiang He

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Writing – review & editing

xbfymicu@163.com

Affiliation Department of Obstetrics and Gynecology Intensive Care Unit, Northwest Women’s and Children’s Hospital, Xi’an City, Shaanxi Prov, China

Competing Interests

The authors have declared that no competing interests exist.