1. National Exposure Research Laboratory; US Environmental Protection Agency; Athens Georgia
2. Oak Ridge Institute for Science and Education Research Participation Program, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division; US Environmental Protection Agency; Duluth Minnesota
3. Integrated Biosciences Graduate Program; University of Minnesota-Duluth; Duluth Minnesota USA
4. National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division; US Environmental Protection Agency; Duluth Minnesota