1. U.S. Army Engineer Research and Development Center, Vicksburg, Mississippi, USA
2. National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, Office of Research and Development, U.S. Environmental Protection Agency, Duluth, Minnesota, USA
3. National Center for Computational Toxicology, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
4. Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Starkville, Mississippi, USA
5. U.S. Army Institute of Public Health, Health Effects Research Program, Aberdeen Proving Ground, Maryland, USA