Drug Delivery SystemsDelivery, ObstetricPregnancyDrug CarriersCesarean SectionDelivery of Health CareGene Transfer TechniquesNanoparticlesGenetic TherapyGenetic VectorsInfant, NewbornPregnancy OutcomeParticle SizePolymersTime FactorsPolyethyleneimineObstetric Labor ComplicationsObstetric Labor, PrematureLiposomesDelayed-Action PreparationsDelivery of Health Care, IntegratedNanocapsulesDisease Models, AnimalAdministration, CutaneousChemistry, PharmaceuticalPremature BirthNanomedicinePolyglycolic AcidDrug CompoundingPregnancy ComplicationsLabor, ObstetricGestational AgeConvectionChitosanAdenoviridaeMice, Inbred C57BLMolecular Sequence DataSkin AbsorptionPolyethylene GlycolsDependovirusExtraction, ObstetricalMicrospheresDogsPharmaceutical VehiclesLabor, InducedSpecies SpecificityEmulsionsParityTissue DistributionCell LineTransfectionRats, Sprague-DawleyNanotechnologyPostpartum PeriodNanostructuresBiological AvailabilityTransduction, GeneticDendrimersMice, Inbred BALB CMaternal Health ServicesAerosolsCells, CulturedCell Line, TumorModels, BiologicalPan troglodytesTechnology, PharmaceuticalAnesthesia, ObstetricalAdministration, OralDose-Response Relationship, DrugBrainPrenatal CareBiocompatible MaterialsElectroporationTransgenesGreen Fluorescent ProteinsLactic AcidBreech PresentationInjections, IntravenousPlasmidsMicrobubblesCell-Penetrating PeptidesMidwiferyUltrasonicsSwineGene ExpressionLabor PresentationDrug Administration RoutesRNA, Small InterferingMuscle, SkeletalAmino Acid SequenceNeoplasmsExcipientsOxygenSkinVacuum Extraction, ObstetricalApgar ScoreHydrogelsModels, AnimalNeedlesPolyglactin 910