1. Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee, USA
2. National Exposure Research Laboratory, U.S. Environmental Protection Agency, Cincinnati, Ohio, USA
3. Independent Contractor, Cincinnati, Ohio, USA
4. Forensic Chemistry Center, U.S. Food and Drug Administration (FDA), Cincinnati, Ohio, USA
5. Department of Chemistry, University of Cincinnati, Cincinnati, Ohio, USA
6. NERL, U.S. EPA, Research Triangle Park, North Carolina, USA
7. National Center for Environmental Assessment (NCEA), U.S. EPA, Cincinnati, Ohio, USA