1. Department of Biology, University of Puerto Rico–Rio Piedras, San Juan, Puerto Rico;
2. Division of Natural Sciences, Maryville College, Maryville, TN;
3. Retroviral Research Center, Universidad Central del Caribe, Bayamón, Puerto Rico;
4. Department of Computer Science, University of Puerto Rico–Rio Piedras, San Juan, Puerto Rico;
5. Department of Pediatrics/Neonatology and Molecular Medicine Program and
6. Department of Internal Medicine and Molecular Medicine Program, University of Utah School of Medicine, Salt Lake City, UT;
7. Bloodworks Northwest Research Institute, Seattle, WA; and
8. Geriatric Research, Education and Clinical Center, Department of Medicine, George E. Wahlen VA Medical Center, Salt Lake City, UT