1. Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA.
2. Department of Epidemiology, University of North Carolina at Chapel Hill Gillings School of Global Public Health, Chapel Hill, North Carolina, USA.
3. Department of Biostatistics, University of North Carolina at Chapel Hill Gillings School of Global Public Health, Chapel Hill, North Carolina, USA.
4. Institute for Global Health and Infectious Diseases, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina. USA.
5. Stroger Hospital, Chicago, Illinois, USA.
6. Division of Infectious Disease, College of Medicine at SUNY Downstate Medical Center, Brooklyn, New York, USA.
7. Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York, USA.
8. Department of Infectious Diseases, Georgetown University School of Medicine, Washington, District of Columbia, USA.
9. Department of Preventive Medicine, University of Southern California, Los Angeles, California, USA.
10. Department of Medicine, University of California San Francisco, San Francisco, California, USA.
11. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
12. Division of Infectious Disease, Department of Medicine, Emory University, Atlanta, Georgia, USA.
13. Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida, USA.
14. Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama, USA.