1. Superfund Research Program, National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Department of Health and Human Services (DHHS), Research Triangle Park, North Carolina, USA
2. MDB, Inc., Durham, North Carolina, USA
3. Human Exposure & Atmospheric Science Division, National Exposure Research Laboratory, U.S. Environmental Protection Agency (EPA), Research Triangle Park, North Carolina, USA
4. National Center for Computational Toxicology, and
5. National Center for Environmental Assessment, Office of Research and Development (ORD), U.S. EPA, Research Triangle Park, North Carolina, USA
6. Integrated Systems Toxicology Division, National Human and Environmental Health Effects Research Laboratory, ORD, U.S. EPA, Research Triangle Park, North Carolina, USA
7. Population Health Branch, and
8. National Toxicology Program, NIEHS, NIH, DHHS, Research Triangle Park, North Carolina, USA
9. NIEHS, NIH, DHHS, Research Triangle Park, North Carolina, USA