About the Authors

Yu Wang

Contributed equally to this work with: Yu Wang, Yang Lv

Affiliations The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Hohhot, China, Department of Gynecology and Obstetrics, Inner Mongolia Medical University affiliated hospital, Hohhot, China

Yang Lv

Contributed equally to this work with: Yu Wang, Yang Lv

Affiliation The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Hohhot, China

Shujun Gao

Affiliation College of Life Sciences, Inner Mongolia University, Hohhot, China

Yuanyuan Zhang

Affiliation College of Life Sciences, Inner Mongolia University, Hohhot, China

Jiajia Sun

Affiliation The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Hohhot, China

Chunling Gong

Affiliation The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Hohhot, China

Xiujuan Chen

chenxiujuan616@163.com (XJC); gpengli@imu.edu.cn (GPL)

Affiliation Department of Gynecology and Obstetrics, Inner Mongolia Medical University affiliated hospital, Hohhot, China

Guangpeng Li

chenxiujuan616@163.com (XJC); gpengli@imu.edu.cn (GPL)

Affiliation The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Hohhot, China

Competing Interests

The authors also declare that Merck Serono Co., Ltd. had no role in study design, data collection and analysis, decision to publish, preparation of the manuscript, or relating to employment, consultancy, patents, products in development, marketed products, etc. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: YW YL GPL. Performed the experiments: YW YL SJG YYZ CLG JJS. Analyzed the data: YW YL GPL. Contributed reagents/materials/analysis tools: XJC GPL. Wrote the paper: YW YL GPL.