Affiliations

• ¹ University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
• ² Harvard TH Chan School of Public Health, Boston, Massachusetts, USA.
• ³ University of Washington, Seattle, Washington, USA.
• ⁴ Social & Scientific Systems, A DLH Holdings Company, Silver Spring, Maryland, USA.
• ⁵ Office of the Global AIDS Coordinator Department of State, Washington, DC, USA.
• ⁶ University of North Carolina, Chapel Hill, North Carolina, USA.
• ⁷ Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.