About the Authors

Cheng Deng

cdeng@stanford.edu

Affiliation Program of Reproductive and Stem Cell Biology, Department of Obstetrics/Gynecology, Stanford University School of Medicine, Stanford, California, United States of America

Aaron J. W. Hsueh

Affiliation Program of Reproductive and Stem Cell Biology, Department of Obstetrics/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: CD AH. Performed the experiments: CD. Analyzed the data: CD AH. Wrote the paper: CD AH.