About the Authors

James A. Byrne

Affiliation Center for Human Embryonic Stem Cell Research and Education, Institute for Stem Cell Biology and Regenerative Medicine, Department of Obstetrics and Gynecology, Stanford University, Palo Alto, California, United States of America

Ha Nam Nguyen

Affiliation Center for Human Embryonic Stem Cell Research and Education, Institute for Stem Cell Biology and Regenerative Medicine, Department of Obstetrics and Gynecology, Stanford University, Palo Alto, California, United States of America

Renee A. Reijo Pera

reneer@stanford.edu

Affiliation Center for Human Embryonic Stem Cell Research and Education, Institute for Stem Cell Biology and Regenerative Medicine, Department of Obstetrics and Gynecology, Stanford University, Palo Alto, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JAB RARP. Performed the experiments: JAB. Analyzed the data: JAB HNN. Contributed reagents/materials/analysis tools: JAB. Wrote the paper: JAB HNN RARP. Financial support: RARP.