1. . Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St Louis, Missouri, USA.
2. . Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.
3. . Department of Community Health Sciences, School of Public Health, State University of New York Downstate Health Sciences University, Brooklyn, New York, USA.
4. . Department of Family Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA.
5. . Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, Florida, USA.
6. . Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
7. . Division of Infectious Diseases, Department of Medicine, University of Alabama School of Medicine, Birmingham, Alabama, USA.
8. . Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, Florida, USA.
9. . Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.