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Abstract
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Keywords:
AmericasAnimals, LaboratoryBreast CancerCancerCervical CancerClinical ResearchContraceptionContraceptive Agents, Female--side effectsContraceptive Agents--side effectsContraceptive Methods--side effectsData AnalysisDeveloped CountriesDeveloping CountriesDiseasesEconomic FactorsEuropeFamily PlanningIncidenceIudMeasurementNeoplasmsNorth AmericaNorthern AmericaNorthern EuropeOral Contraceptives--side effectsResearch And DevelopmentResearch MethodologyTechnologyUnited KingdomUnited States