About the Authors
- Michael K. Skinner
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, Washington, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: MKS. Performed the experiments: MM CG RT MMH. Analyzed the data: MKS MM CG RT MMH. Wrote the paper: MKS MM CG.