About the Authors

Yanhui Ma

Affiliation Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China

Xiaolei Zhang

Affiliation Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China

Xiaoxuan Xu

Affiliation Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China

Liang Shen

Affiliation Department of Obstetrics and Gynecology, Provincial Hospital Affiliated with Shandong University, Jinan, Shandong, China

Yao Yao

Affiliation Department of Pharmaceutics, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong, China

Ziyan Yang

Affiliation Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China

Peishu Liu

peishuliu@126.com

Affiliation Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YM XZ PL. Performed the experiments: YM XX. Analyzed the data: YM XZ LS ZY. Contributed reagents/materials/analysis tools: YM XZ PL YY. Wrote the paper: YM XZ PL.