Dahiru, Tukur, et al. “Levels, Trends, and Causes of Adolescent and Young Adult Maternal Mortality in Nigeria During 1990–2017: Analysis of the 2017 Global Burden of Disease Study Database”. International Journal of Translational Medical Research and Public Health, vol. 6, no. 2, July 2022, pp. 1-9, doi:10.21106/ijtmrph.414.