What makes infant mortality rates fall in developing countries?
Koch-Weser
D
D
Yankauer
A
A
D002675:Child, Preschool; D003906:Developing Countries; D006297:Health Services Accessibility; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D009035:Mothers / Q000193:education