1. Division of Infectious Diseases, Emory University Department of Medicine , Atlanta, Georgia , USA
2. Division of General Internal Medicine, Emory University Department of Medicine , Atlanta, Georgia , USA
3. Department of Biostatistics, Emory University Department of Medicine, Rollins School of Public Health , Atlanta, Georgia , USA
4. Division of General Internal Medicine, University of Pittsburgh Department of Medicine , Pittsburgh, Pennsylvania , USA
5. Hubert Department of Global Health, Rollins School of Public Health, Emory University , Atlanta, Georgia , USA
6. Department of Behavioral, Social, and Health Education Services, Rollins School of Public Health, Emory University , Atlanta, Georgia , USA