1. Free Radical Metabolite Section, Laboratory of Pharmacology and ChemistryNational Institute of Environmental Health Sciences, National Institutes of Health Research Triangle Park North Carolina USA
2. National Health and Environmental Effects Research LaboratoryEnvironmental Protection Agency Research Triangle Park North Carolina USA
3. Laboratory of Host DefensesNational Institute of Allergy and Infectious Diseases, National Institutes of Health Bethesda Maryland USA
4. Laboratory of Hepatobiology and Toxicology, Department of Pharmacology, and Curriculum in ToxicologyUniversity of North Carolina Chapel Hill North Carolina USA