1. Center for Regulatory and Environmental Analytical Metabolomics; University of Louisville; Louisville KY USA
2. J.G. Brown Cancer Center; University of Louisville; Louisville KY USA
3. Department of Chemistry
4. Diabetes and Obesity Center, 580 South Preston Street; University of Louisville; Louisville KY 40202 USA
5. Graduate Center of Toxicology and Markey Cancer Center; University of Kentucky; 789 Limestone St. Lexington KY 40536 USA
6. Department of Chemistry; Duke University; 124 Science Drive Durham NC 27708-0354 USA
7. Department of Molecular & Cellular Biochemistry and Markey Cancer Center; University of Kentucky; 800 Rose Street Lexington KY 40536 USA