[1] Harvard Univ, Sch Publ Hlth, Maternal Hlth Task Force, Women & Hlth Initiat,Dept Global Hlth & Populat, Boston, MA 02115 USA
[2] Ctr Dis Control & Prevent, Div Reprod Hlth, Atlanta, GA USA
[3] Univ Cape Town, Sch Publ Hlth & Family Med, Womens Hlth Res Unit, ZA-7925 Cape Town, South Africa
[4] Simon Fraser Univ, Fac Hlth Sci, Burnaby, BC V5A 1S6, Canada
[5] US Agcy Int Dev, Off HIV AIDS, Washington, DC 20523 USA
[6] Emory Univ, Sch Med, Dept Gynecol & Obstet, Atlanta, GA USA
[7] US Agcy Int Dev, Off Hlth Infect Dis & Nutr, Washington, DC 20523 USA
[8] Univ KwaZulu Natal, Dept Obstet & Gynecol, Nelson R Mandela Sch Med, Durban, South Africa
[9] Univ Alabama Birmingham, Sch Publ Hlth, Dept Hlth Care Org & Policy, Birmingham, AL 35294 USA
[10] US Dept State, Off US Global AIDS Coordinator, Washington, DC 20520 USA