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Abstract
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Keywords:
Adolescent PregnancyAge FactorsAmericasBrazilContraceptionContraceptive UsageDelivery Of Health CareDemographic FactorsDeveloped CountriesDeveloping CountriesFamily PlanningFertilityFertility MeasurementsHealthHealth PersonnelLatin AmericaMarital StatusMeasurementNuptialityNursesParityPopulationPopulation CharacteristicsPopulation DynamicsPregnancyReproductionReproductive BehaviorResearch MethodologyRetrospective StudiesSouth AmericaStudies