Onyinye D-W, Kalu UI, Martha A, U ND. Analysis of Inequality in Healthcare Utilization among Pregnant Women in Nigeria: Concentration Index Approach. 5007 [Internet]. 2017 Mar. 27 [cited 2024 Oct. 31];7(5):424-33. Available from: https://archive.aessweb.com/index.php/5007/article/view/2892