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Abstract
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Keywords:
Abortion, InducedAbortion, SpontaneousAcceptor CharacteristicsAge FactorsContraceptionContraception FailureContraception TerminationContraceptive MethodsContraceptive UsageDemographic FactorsDiseasesFamily PlanningFertilityFertility MeasurementsFollow-up StudiesIudIud, UnmedicatedParityPopulationPopulation CharacteristicsPopulation DynamicsPregnancy ComplicationsProspective StudiesResearch MethodologyStudiesUse-effectiveness