1. United Nations Inter-agency Group for Child Mortality Estimation (UN IGME) . Levels and trend in child mortality report, 2020.
2. Healthy Newborn Network . Explore Countries- Nigeria. healthynewbornnetwork.org, 2017. Available: https://www.healthynewbornnetwork.org/country/nigeria/
3. National Academies of Sciences Engineering and Medicine . Improving diagnosis in health care. National Academies Press, 2015.
4. World Health Organization . Everybody’s business-strengthening health systems to improve health outcomes: WHO’s framework for action, 2007
5. The Lancet Commission on diagnostics: transforming access to diagnostics;Fleming;Lancet,2021