[1] Univ Melbourne, Nossal Inst Global Hlth, Sch Populat & Global Hlth, Gender & Womens Hlth Unit, Melbourne, Vic 3053, Australia
[2] Univ Calif San Francisco, Sch Med, Dept Obstet & Reprod Sci, San Francisco, CA USA
[3] UNIV BIRMINGHAM, Coll Med & Hlth, BIRMINGHAM, England
[4] Bayero Univ, Coll Hlth Sci, African Ctr Excellence Populat Hlth & Policy, Kano, Nigeria
[5] Univ Cape Town, Dept Obstet & Gynaecol, Cape Town, South Africa
[6] KwaZulu Natal Dept Hlth, Pietermaritzburg, South Africa
[7] Univ KwaZulu Natal, Nelson Mandela Sch Med, Dept Obstet & Gynaecol, Durban, South Africa
[8] Univ Witwatersrand, Effect Care Res Unit, Johannesburg, South Africa
[9] Walter Sisulu Univ, East London, South Africa
[10] Univ Botswana, Dept Obstet & Gynecol, Gaborone, Botswana
[11] Fac Hlth Sci, Dept Obstet & Gynecol, Universityof Nairobi, Nairobi, Kenya
[12] Dept Obstet & Gynecol, Muhimbili Universityof Hlth & Allied Sci, Dar Es Salaam, Tanzania
[13] UCL, Ctr Behav Change, London, England
[14] La Trobe Univ, La Trobe Rural Hlth Sch, John Richards Ctr Rural Ageing Res, Wodonga, Vic, Australia
[15] Jhpiego, Maternal & Newborn Hlth Unit, Tech Leadership & Innovat, Baltimore, MD 21231 USA
[16] Johns Hopkins Univ, Baltimore, MD USA
[17] Bayero Univ, Coll Hlth Sci, Fac Clin Sci, Dept Obstet & Gynaecol, Kano, Nigeria
[18] Gen Hosp, Dept Obstet & Gynaecol, Katsina, Nigeria
[19] Effect Care Res Unit, East London, South Africa
[20] Univ Birmingham, Inst Appl Hlth Res, Birmingham, England
[21] Concept Fdn, Geneva, Switzerland
[22] WHO, Dept Sexual & Reprod Hlth & Res, UNDP UNFPA UNICEF WHO World Bank Special Programme, Geneva, Switzerland