1. Department of Pathology and Microbiology and Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, US
2. Halogenated Solvents Industry Alliance, Arlington, VA, US
3. Toxicology Consultant, Autumn Ridge Circle N, Midland, MI, US
4. Department of Environmental and Occupational Health, Indiana University School of Public Health, Bloomington, IN, US