1. Department of Medicinal Chemistry
2. Department of Pharmacology and Toxicology, The University of Utah, 421 Wakara Way, Suite 360, Salt Lake City, Utah 84108
3. The Walter and Eliza Hall Institute of Medical Research, Parkville 3052, Australia
4. Department of Radiology
5. Department of Biochemistry and Molecular Biophysics, Arizona Health Sciences Center, University of Arizona, Tucson, Arizona 85724