[1] Univ Pretoria, Dept Obstet & Gynaecol, Sch Med,Maternal & Infant Hlth Strategies Unit, South African Med Res Council,Fac Hlth Sci, Pretoria, South Africa
[2] Univ Free State, Dept Obstet & Gynaecol, Fac Hlth Sci, Bloemfontein, South Africa
[3] Stellenbosch Univ, Fac Med & Hlth Sci, Dept Obstet & Gynaecol, Cape Town, South Africa
[4] Tygerberg Hosp, Cape Town, South Africa
[5] Walter Sisulu Univ, Fac Hlth Sci, Dept Family Med, Mthatha, Eastern Cape, South Africa
[6] Univ Cape Town, Primary Hlth Care Directorate, Rondebosch, South Africa
[7] Zithulele Hosp, Eastern Cape, South Africa
[8] KwaZulu Natal Dept Hlth, Clin Dept Obstet & Gynaecol, Durban, South Africa
[9] Univ KwaZulu Natal, Coll Hlth Sci, Nelson R Mandela Sch Med, Dept Obstet & Gynaecol, Durban, South Africa
[10] Natl Comm Confidential Enquiries Maternal Deaths, Pretoria, South Africa