Absolute and relative socio-economic inequalities in access to maternal health services and in maternal health status in South Africa: The 2008 national SABSSM survey.
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*In women who had been pregnant in the past 2 years.∧In women who had a child in past two years. P tests distribution of outcome across quartiles;+P++P≥0.05 & P
创建时间：
2015-12-02
