About the Authors

Yahong Jiang

Affiliation NPFPC Key Laboratory of Contraceptives and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China

Yan Zhu

Affiliation NPFPC Key Laboratory of Contraceptives and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China

Yan Shi

Affiliation NPFPC Key Laboratory of Contraceptives and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China

Yaping He

Affiliation NPFPC Key Laboratory of Contraceptives and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China

Zhichao Kuang

Affiliation NPFPC Key Laboratory of Contraceptives and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China

Zhaogui Sun

Affiliation NPFPC Key Laboratory of Contraceptives and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China

Jian Wang

wangjiansippr@126.com

Affiliation NPFPC Key Laboratory of Contraceptives and Devices, Shanghai Institute of Planned Parenthood Research, Shanghai, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YJ ZS JW. Performed the experiments: YJ YH ZK. Analyzed the data: YJ YZ. Contributed reagents/materials/analysis tools: YS. Wrote the paper: YJ JW.