Gulumbe, Usman Maternal mortality ratio in selected rural communities in Kebbi State, Northwest Nigeria. [electronic resource] - BMC pregnancy and childbirth Dec 2018 - 503 p. digital Publication Type: Journal Article ISSN: 1471-2393 Standard No.: 10.1186/s12884-018-2125-2 doi Subjects--Topical Terms: AdolescentAdultFemaleHumansMaternal MortalityMiddle AgedNigeria--epidemiologyPregnancyRetrospective StudiesRisk AssessmentRural Population--statistics & numerical dataSiblingsYoung Adult