About the Authors

Monica T. Cooper

Affiliation Program on Genomics of Differentiation, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America

James A. Kennison

Jim_Kennison@nih.gov

Affiliation Program on Genomics of Differentiation, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JAK. Performed the experiments: MTC JAK. Analyzed the data: JAK. Wrote the paper: MTC JAK.