Efforts to reduce infant mortality.
D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007226:Infant Mortality / Q000639:trends*; D007231:Infant, Newborn; D008297:Male; D016730:Program Development; D015397:Program Evaluation; D014481:United States; D014903:West Virginia