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Summary
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Keywords:
Age FactorsBarrier MethodsBehaviorBiologyCoital FrequencyContraceptionContraceptive Agents, FemaleContraceptive Agents, Progestin--indicationsContraceptive Agents--indicationsContraceptive Methods--indicationsContraceptive UsageDemographic FactorsEndocrine SystemFamily PlanningFamily Planning, Behavioral MethodsFecundabilityFecundityFertilityHormonesInjectables--indicationsIudLevonorgestrelMenopauseMethod AcceptabilityNatural Family PlanningOral Contraceptives, Combined--indicationsOral Contraceptives--indicationsPhysiologyPopulationPopulation CharacteristicsPopulation DynamicsReproductionReproductive BehaviorReproductive Control AgentsSex BehaviorSmokingSocial BehaviorSterilization, Sexual--indications