1. University of Pittsburgh, Pittsburgh, Pennsylvania, USA
2. Fred Hutchinson Cancer Research Center, Vaccine and Infectious Disease Division, Seattle, Washington, USA
3. FHI 360, Durham, North Carolina, USA
4. Magee-Womens Research Institute, Pittsburgh, Pennsylvania, USA
5. University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
6. Division of AIDS, NIAID, NIH, Bethesda, Maryland, USA
7. Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
8. University of Pennsylvania, Philadelphia, Pennsylvania, USA
9. International Partnership for Microbicides, Silver Spring, Maryland, USA