TracheaAirway ObstructionAirway RemodelingAirway ResistanceTracheal NeoplasmsBronchiRespiratory SystemTracheal DiseasesLungRespiratory MucosaBronchial HyperreactivityAirway ManagementMuscle, SmoothTracheal StenosisAsthmaIntubation, IntratrachealGuinea PigsMucusBronchoconstrictionLarynxRespiratory HypersensitivityBronchoscopyBronchoalveolar Lavage FluidLaryngeal MasksMuscle ContractionHistamineBronchial Provocation TestsMuscle RelaxationTracheotomyRespiratory Physiological PhenomenaContinuous Positive Airway PressureRespiratory MechanicsBronchial DiseasesEpithelial CellsEpitheliumMucociliary ClearanceEosinophilsAerosolsRespiratory Function TestsAdministration, InhalationBronchographyFiber Optic TechnologyExocrine GlandsAir PressureTracheostomyLung CompliancePulmonary VentilationCystic FibrosisPharynxForced Expiratory VolumeBronchitisBronchodilator AgentsTracheitisAlbuterolEpiglottisMethacholine CompoundsBronchial SpasmNeurokinin AInflammationInhalationMice, Inbred BALB CHypersensitivitySubstance PVagus NerveGoblet CellsSRS-ARespirationCoughMucous MembraneAcetylcholinePneumoniaLung Diseases, ObstructiveDisease Models, AnimalMucinsLung Volume MeasurementsPositive-Pressure RespirationLaryngeal NervesDose-Response Relationship, DrugNasal MucosaEosinophiliaInterleukin-13SputumRespiration, ArtificialPulmonary EosinophiliaCapsaicinTachykininsDogsOzoneCiliaSleep Apnea, ObstructiveCells, CulturedAtropineBronchial NeoplasmsPressureNoseParasympathetic Nervous SystemBronchiolesThyroid CartilageCarbacholVital Capacity