1. Ronsmans C, Graham WJ, on behalf of The Lancet Maternal Survival Series steering group. Maternal mortality who, when, where and why. The Lancet. 2006;368(9542):1189–200. Doi:https://doi.org/10.1016/SO140-6736(06)69380-X.
2. World Health Organization. Trends in maternal mortality: 1990–2015, estimates from WHO, UNICEF, UNFPA, World Bank and the United Nations Population Division. Geneva: WHO; 2015.
3. World Health Organization. Maternal mortality, Key facts. Available at https://www.who.intNewsroom>Factsheets>Detail. Accessed 20 Apr 2022.
4. National Population Commission (NPC), ICF. Nigeria Demographic and Health Survey 2018. Abuja, Nigeria. Rockville: NPC, ICF; 2019.
5. Ossai EN, Umeokonkwo CD, Eze II, Eke PC. Determinants of non-institutional deliveries in urban and rural communities of Ebonyi State, Nigeria: implications for policy. WAJM. 2021;38(3):241–5.