FRANCIS COLLINS SOMORIJA, AMINU MOHAMMED DUKKU, ADAMU INUWA IBRAHIM. CHILD MORTALITY IN NIGERIA: TRENDS, DETERMINANTS, AND DISPARITIES FROM 1990 TO 2021 – A DEMOGRAPHIC SYNTHESIS USING NDHS AND MICS DATA. BJHSS. 2025;7(6). doi:10.70382/bjhss.v7i6.004