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Keywords:
Birth RateComparative StudiesDemographic FactorsDeveloped CountriesEuropeFertilityFertility MeasurementsFertility RateGermany, Federal Republic OfInfant MortalityMarriageMortalityNatural IncreaseNuptialityPopulationPopulation DynamicsPopulation GrowthPopulation StatisticsResearch MethodologyStudiesVital StatisticsWestern Europe