About the Authors

Jenia Semyonov

Affiliation Division of Reproductive Biology, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California, United States of America

Jae-Il Park

Affiliation Division of Reproductive Biology, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California, United States of America

Chia Lin Chang

Affiliation Chang Gung University School of Medicine, and Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan

Sheau Yu Teddy Hsu

teddyhsu@stanford.edu

Affiliation Division of Reproductive Biology, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SH CC. Performed the experiments: SH JP JS. Analyzed the data: SH JP CC JS. Contributed reagents/materials/analysis tools: SH. Wrote the paper: SH JS.