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Abstract
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Keywords:
Age Specific Fertility Rate--changesAmericasBaby BoomBirth RateData AnalysisDelayed ChildbearingDemographic FactorsDeveloped CountriesFertilityFertility MeasurementsFertility RateNorth AmericaNorthern AmericaPopulationPopulation DynamicsReproductive BehaviorResearch MethodologyTotal Fertility Rate--changesUnited States