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2. Ethiopia demographic and health survey 2011,2012
3. Health Sector Development Program IV 2010/11–2014/15,2010
4. Sub-Saharan Africa's mothers, newborns, and children: where and why do they die?;M Kinney,2010
5. Sub-Saharan Africa’s mothers, newborns, and children: how many lives could be saved with targeted health interventions?;I Friberg,2010