1. U.S. Environmental Protection Agency, Office
of Research and Development, National Health and Environmental Effects
Research Laboratory, Integrated Systems Toxicology Division, Research Triangle Park, North Carolina 27709, United States
2. U.S. Environmental Protection Agency, Office of Research and Development, National Health
and Environmental Effects Research Laboratory, Mid-Continent Ecology
Division, Duluth, Minnesota 55804, United States
3. Environmental Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, Mississippi 39180, United States
4. U.S. Environmental Protection Agency, Office of Research and
Development, National Health and Environmental Effects Research Laboratory,
Mid-Continent Ecology Division, Grosse Isle, Michigan 48138, United States
5. School
of Mathematical and Natural Sciences, Arizona State University, West
Campus, Glendale, Arizona 85306, United States