1. National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
2. Cytology Unit, Faculty of Health Sciences, University of the Witwatersrand and National Health Laboratory Service, Johannesburg, South Africa
3. Johns Hopkins University, Patient Safety Monitoring in International Laboratories (SMILE), Baltimore, MD
4. Vanderbilt Institute for Global Health and Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN
5. Social & Scientific Systems, Silver Spring, MD
6. Clinical HIV Research Unit, Faculty of Health Sciences, Department of Internal Medicine, University of Witwatersrand, Johannesburg, South Africa
7. Right to Care, Johannesburg, South Africa
8. HJF-DAIDS, a Division of The Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD
9. Rush University Medical Center, Chicago, IL
10. Departments of Laboratory Medicine and Medicine, University of Washington, Seattle, WA
11. Division of Infectious Diseases, Weill Cornell Medical College, New York, NY