1. Department of Pharmacology and Toxicology, The Liver Center, and the Division of Clinical Pharmacology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
2. Laboratoire de Chimie Bioorganique, UMR CNRS 5625, Université de Montpellier II, 34095 Montpellier, France
3. Division of Molecular Virology and Immunology, Georgetown University, Rockville, MD 20852, USA
4. Georgia Research Center for AIDS and HIV Infections, Veterans Affairs Medical Center, Decatur, GA 30033, USA
5. Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University, School of Medicine, Atlanta, GA 30322, USA