TracheaBronchiBronchial NeoplasmsTracheal NeoplasmsBronchial DiseasesBronchographyBronchoscopyTracheal DiseasesMuscle, SmoothTracheal StenosisGuinea PigsLungBronchoconstrictionMuscle ContractionAirway ObstructionRespiratory SystemHemoptysisMuscle RelaxationCarcinoma, BronchogenicNeurokinin AIntubation, IntratrachealEpitheliumTomography, X-Ray ComputedTachykininsMucusHistamineLarynxExocrine GlandsCell DivisionMuscle TonusTime FactorsBronchial ArteriesSubstance PAcetylcholinePulmonary AtelectasisBronchial FistulaMicroscopy, ElectronPneumonectomyForeign BodiesAirway ResistanceTracheobronchomegalyMethacholine CompoundsCapsaicinFiber Optic TechnologyAerosolsLung NeoplasmsRespiratory MucosaEndothelinsBronchoscopesRespiratory Tract NeoplasmsSRS-ADogsTracheitisCarcinoma, Adenoid CysticDose-Response Relationship, DrugMicroscopy, Electron, ScanningSwineElectric StimulationTracheotomyMucous MembraneIndomethacinMucociliary ClearancePulmonary ArteryAlbuterolVagus NerveCarbacholImmunohistochemistrySolanum glaucophyllumEvans BlueRadiography, ThoracicParticle SizeTracheoesophageal FistulaIsoproterenolViper VenomsThoracic Surgical ProceduresMethacholine ChlorideModels, BiologicalBronchiectasisParasympathetic Nervous SystemArteriolesThoracotomyLaser TherapyBronchial SpasmAtropineReceptors, EndothelinPulmonary VentilationTreatment OutcomeEpithelial CellsConstriction, PathologicCell DifferentiationPressureBronchodilator AgentsRespiratory Physiological PhenomenaAdrenergic beta-AgonistsPiperidinesStem CellsEquipment DesignMolecular Sequence DataPlasma Cell Granuloma, PulmonaryCough