Ojewumi TK. Individual and Systemic Factors of Under-five Mortality in Nigeria: A Cox Proportional Hazard Model. macro. manag. & public. polic. [Internet]. 2023 Jul. 28 [cited 2024 May 17];5(3):16-33. Available from: https://journals.bilpubgroup.com/index.php/mmpp/article/view/5735