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Summary
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Keywords:
AmericasContraceptionContraceptive AgentsContraceptive Agents, FemaleContraceptive Agents, ProgestinContraceptive ImplantsContraceptive MethodsContraceptive PrevalenceContraceptive RemovalContraceptive UsageDeveloped CountriesFamily PlanningLevonorgestrelNorth AmericaNorthern AmericaResearch MethodologySampling StudiesStudiesSurveysTreatmentUnited States