1. Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia.
2. Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia.
3. Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, Michigan.
4. Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York.
5. Department of Behavioral and Social Sciences, School of Public Health, Brown University, Providence, Rhode Island.
6. Department of Pediatrics, Craig-Dalsimer Division of Adolescent Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
7. Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.