odunowo, Omobolaji. “Assessing the Impact of Maternal and Infant Mortality on Healthcare System Efficiency in Sub-Saharan Africa Using Data Envelopment Analysis”. The American Journal of Interdisciplinary Innovations and Research 7, no. 10 (October 11, 2025): 31–42. Accessed October 30, 2025. https://www.theamericanjournals.com/index.php/tajiir/article/view/6687.