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[Differential fertility by intelligence. The role of birth planning (Author's transl)]

J R Udry

    Contraception, Fertilite, Sexualite
    |October 1, 1979
    PubMed
    Abstract

    No abstract available in PubMed .

    Keywords:
    AmericasContraceptionCultural BackgroundDemographic FactorsDeveloped CountriesEthnic GroupsFamily PlanningFertilityFertility MeasurementsNorth AmericaNorthern AmericaParityPopulationPopulation CharacteristicsPopulation DynamicsResearch MethodologySampling StudiesStudiesSurveysUnited StatesWhites

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