1. Division of Infectious Diseases, Department of Medicine, University of Maryland School of Medicine, Baltimore MD;
2. Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD;
3. Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Diseases, Johns Hopkins School of Medicine, Baltimore, MD;
4. Division of Magnetic Resonance Research, Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD;
5. Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD; and
6. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD