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Immunization, SecondaryContraceptives, OralContraceptives, PostcoitalContraceptives, Oral, CombinedContraceptives, Oral, HormonalInfant EquipmentContraception, PostcoitalVaccines, CombinedTetanusContraception BehaviorContraceptive Agents, FemaleImmunization ScheduleDiphtheria-Tetanus-Pertussis VaccineContraceptionChild Restraint SystemsWhooping CoughDrug PackagingPertussis VaccineEthinyl EstradiolVaccines, AcellularContraceptive Devices, FemaleMedication AdherenceVaccinationDesogestrelContraceptives, Oral, SyntheticTetanus ToxoidDrugs, Chinese HerbalPoliovirus Vaccine, InactivatedDiphtheria-Tetanus-acellular Pertussis VaccinesContraceptive DevicesContraceptive AgentsDiphtheria ToxoidAntibodies, BacterialVaccines, ConjugateDiphtheria-Tetanus VaccinePatient ComplianceTabletsRabies VaccinesSeat BeltsTetanus AntitoxinImmunizationNorpregnenesNorgestrelMeningococcal VaccinesMenstruationIntrauterine DevicesInjections, IntradermalFamily Planning ServicesHealth Knowledge, Attitudes, PracticeHepatitis B AntibodiesContraceptive Agents, MaleAutomobilesMedicine, Chinese TraditionalVaccines, SyntheticEthinyl Estradiol-Norgestrel CombinationRabiesPharmacists' AidesProgestinsImmunoglobulin GAntibodies, ViralAntibody FormationDiphtheria AntitoxinHaemophilus influenzae type bNorethindroneProtective DevicesImmunologic MemoryTime FactorsPregnancyCreosoteInjections, IntramuscularQuestionnairesBacterial VaccinesAdministration, OralPneumococcal VaccinesTransdermal PatchRabies virusBordetella pertussisCyproterone AcetateTreatment OutcomeHIV InfectionsElectrical Equipment and SuppliesCommunications MediaMedroxyprogesterone AcetateBisonTravel MedicineDEAE-DextranAccidents, TrafficNonprescription DrugsQiPlacebosPregnancy, UnwantedPregnancy, UnplannedDouble-Blind MethodPlacebo EffectCholera VaccinesAdjuvants, ImmunologicAppetite DepressantsUnited StatesDrug CombinationsHirsutism