TracheaBronchiBronchial NeoplasmsTracheal NeoplasmsBronchial DiseasesBronchoscopyBronchographyTracheal DiseasesMuscle, SmoothTracheal StenosisGuinea PigsLungBronchoconstrictionMuscle ContractionAirway ObstructionHemoptysisRespiratory SystemMuscle RelaxationCarcinoma, BronchogenicNeurokinin AIntubation, IntratrachealEpitheliumTachykininsMucusHistamineLarynxExocrine GlandsCell DivisionPulmonary AtelectasisBronchial ArteriesBronchial FistulaSubstance PForeign BodiesPneumonectomyTomography, X-Ray ComputedMethacholine CompoundsAcetylcholineAirway ResistanceMuscle TonusTracheobronchomegalyCapsaicinRespiratory MucosaRespiratory Tract NeoplasmsSRS-ACarcinoma, Adenoid CysticTime FactorsLung NeoplasmsTracheitisEndothelinsBronchoscopesFiber Optic TechnologyDose-Response Relationship, DrugMucous MembraneTracheotomyAlbuterolSolanum glaucophyllumElectric StimulationMucociliary ClearanceCarbacholTracheoesophageal FistulaVagus NerveEvans BlueDogsIsoproterenolAerosolsBronchiectasisThoracic Surgical ProceduresViper VenomsMethacholine ChlorideIndomethacinParasympathetic Nervous SystemRadiography, ThoracicThoracotomyBronchial SpasmPulmonary ArteryImmunohistochemistryAtropineSwinePulmonary VentilationReceptors, EndothelinMolecular Sequence DataBronchodilator AgentsEpithelial CellsRespiratory System AbnormalitiesCell DifferentiationPiperidinesStem CellsRespiratory Physiological PhenomenaAdrenergic beta-AgonistsCoughLaser TherapyBronchitisThiorphanPlasma Cell Granuloma, PulmonaryAsthmaMitosisMicroscopy, ElectronBronchopneumoniaDrosophila ProteinsPulmonary Surgical Procedures