About the Authors

Mei Peng

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Yiling Ding

dingylcn@yeah.net

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Ling Yu

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Yali Deng

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Weisi Lai

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Yun Hu

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Hongwen Zhang

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Xianqing Wu

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Hong Fan

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Hui Ding

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Yilin Wu

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Guangshi Tao

Affiliation Department of Gynaecology & Obstetrics, the Second Xiangya Hospital of Central South University, Changsha 410011, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MP Y. Ding. Performed the experiments: LY Y. Deng WSL YH HWZ XQW. Analyzed the data: HWZ XQW HF HD YLW. Contributed reagents/materials/analysis tools: HD YLW GST. Wrote the paper: MP LY Y. Deng WSL. Supervised the whole writing process: Y. Ding.