About the Authors

B. Alex Merrick

merrick@niehs.nih.gov

Affiliation Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America

Dhiral P. Phadke

Affiliation Systems Research and Applications International, Durham, North Carolina, United States of America

Scott S. Auerbach

Affiliation Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America

Deepak Mav

Affiliation Systems Research and Applications International, Durham, North Carolina, United States of America

Suzy M. Stiegelmeyer

Affiliation Systems Research and Applications International, Durham, North Carolina, United States of America

Ruchir R. Shah

Affiliation Systems Research and Applications International, Durham, North Carolina, United States of America

Raymond R. Tice

Affiliation Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America

Competing Interests

The authors disclose that the co-authors, D.P.P., D.M., S.M.S. and R.R.S., are contractors working for the National Institute of Environmental Health Sciences (NIEHS). This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: BAM SSA RRT. Performed the experiments: BAM SSA. Analyzed the data: DPP DM SMS RRS. Contributed reagents/materials/analysis tools: DPP DM RRS. Wrote the paper: BAM.