[1] Univ Calif San Francisco, Global Hlth Sci, San Francisco, CA 94143 USA
[2] Ctr Dis Control & Prevent CDC, Ctr Global Hlth, Div Global HIV AIDS, Entebbe, Uganda
[3] Makerere Univ, Sch Publ Hlth MakSPH, Kampala, Uganda
[4] Univ Amsterdam, Acad Med Ctr, Dept Clin Epidemiol, NL-1012 WX Amsterdam, Netherlands
[5] Ctr Dis Control & Prevent CDC, Ctr Global Hlth, Div Global HIV AIDS, Atlanta, GA USA