[1] Makerere Univ Johns Hopkins Univ MU JHU Res Colla, Kampala, Uganda
[2] Makerere Univ, Coll Hlth Sci, Kampala, Uganda
[3] Kaiser Permanente Washington Hlth Res Inst, Seattle, WA USA
[4] Johns Hopkins Univ, Sch Med, Baltimore, MD USA
[5] Univ Witwatersrand, SAMRC Wits Dev Pathways Hlth Res Unit, Fac Hlth Sci, Johannesburg, South Africa
[6] Univ Witwatersrand, Maternal Adolescent & Child Hlth Res Unit, Fac Hlth Sci, Johannesburg, South Africa