1. Oak Ridge Institute for Science and Education (ORISE) Research Participation Program at the U.S. Environmental Protection Agency (EPA), Chapel Hill, North Carolina, USA
2. Department of Epidemiology, UNC Gillings School of Global Public Health, Chapel Hill, North Carolina, USA
3. Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. EPA, Research Triangle Park, North Carolina, USA
4. Microbial Chemical Environmental Assessment Research Division, National Exposure Research Laboratory, Office of Research and Development, U.S. EPA, Cincinnati, Ohio, USA
5. GreenWater Laboratories, Palatka, Florida, USA