Drug Delivery SystemsDelivery, ObstetricDrug CarriersPregnancyCesarean SectionDelivery of Health CareGene Transfer TechniquesNanoparticlesGenetic TherapyGenetic VectorsPregnancy OutcomeInfant, NewbornParticle SizePolyethyleneiminePolymersObstetric Labor ComplicationsObstetric Labor, PrematureLiposomesDelayed-Action PreparationsDelivery of Health Care, IntegratedNanocapsulesChemistry, PharmaceuticalNanomedicinePremature BirthPolyglycolic AcidDrug CompoundingAdministration, CutaneousPregnancy ComplicationsLabor, ObstetricChitosanConvectionGestational AgeAdenoviridaeSkin AbsorptionExtraction, ObstetricalPolyethylene GlycolsLabor, InducedDependovirusMicrospheresTime FactorsEmulsionsParityPharmaceutical VehiclesNanotechnologyPostpartum PeriodNanostructuresMaternal Health ServicesDendrimersAnesthesia, ObstetricalTechnology, PharmaceuticalPrenatal CareTransduction, GeneticBreech PresentationBiocompatible MaterialsTransfectionAerosolsCell-Penetrating PeptidesElectroporationMidwiferyMicrobubblesLabor PresentationCell Line, TumorExcipientsVacuum Extraction, ObstetricalApgar ScoreHydrogelsUltrasonicsGreen Fluorescent ProteinsPuerperal DisordersNebulizers and VaporizersPolyglactin 910TransgenesAdministration, OphthalmicNeedlesRNA, Small InterferingPregnancy Complications, InfectiousDrug Administration RoutesVaginal Birth after CesareanParturitionPregnancy Trimester, ThirdInjectionsEquipment DesignPlasmidsFetal DistressLactic AcidCapsulesNanoconjugatesDisease Models, AnimalPharmaceutical PreparationsPolylysineBirth WeightMice, Inbred C57BLPostpartum HemorrhageTissue DistributionRats, Sprague-DawleyTrial of LaborNatural ChildbirthCell LineCell SurvivalCervical Ripening