The case of the elusive infant mortality rate.
Hartford
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RB
D000569:Americas; D003625:Data Collection; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D007226:Infant Mortality; D009026:Mortality; D009656:North America; D011153:Population; D011157:Population Dynamics; D012106:Research; D014481:United States
Americas; Data Collection; Demographic Factors; Developed Countries; Developing Countries; Infant Mortality; Mortality; North America; Northern America; Population; Population Dynamics; Research Methodology; United States; World