Airway ObstructionInflammationIntestinal ObstructionAirway ResistanceUreteral ObstructionLung Diseases, ObstructiveAsthmaForced Expiratory VolumeRespiratory Function TestsAirway RemodelingSpirometryLaryngeal DiseasesLungVital CapacityTracheal StenosisBronchiNasal ObstructionBronchial HyperreactivityRespiratory SystemBronchitisBronchial DiseasesPierre Robin SyndromeInflammation MediatorsDuodenal ObstructionPlethysmography, Whole BodyMaximal Expiratory Flow-Volume CurvesBronchoscopyBronchoconstrictionPulmonary VentilationBronchial Provocation TestsPulmonary Disease, Chronic ObstructiveBronchoalveolar Lavage FluidUrinary Bladder Neck ObstructionBronchodilator AgentsTracheal DiseasesUrethral ObstructionGastric Outlet ObstructionRespiratory MechanicsRespiratory HypersensitivityRespiratory MucosaTotal Lung CapacityVentricular Outflow ObstructionTracheotomyDisease Models, AnimalLaryngostenosisResidual VolumeIntubation, IntratrachealLung Volume MeasurementsHeliumAdministration, InhalationLarynxPeak Expiratory Flow RateAlbuterolMucusDyspneaForced Expiratory Flow RatesLaryngeal EdemaPulmonary EmphysemaMaximal Expiratory Flow RateEosinophilsAerosolsPneumoniaFunctional Residual CapacityHorse DiseasesTracheostomyLacrimal Duct ObstructionRespirationEpiglottisInhalationTracheal NeoplasmsLaryngeal MasksCoughMice, Inbred C57BLHigh-Frequency Jet VentilationRespiratory SoundsBronchial SpasmCytokinesAirway ManagementSleep Apnea, ObstructivePharynxSleep Apnea SyndromesTongue DiseasesLaryngoceleSputumAir PressureSmokingChronic DiseaseMethacholine ChlorideHypersensitivityLung DiseasesTomography, X-Ray ComputedBronchographyTime FactorsSeverity of Illness IndexPlethysmographyTreatment OutcomeLung ComplianceTracheaAtropine DerivativesFiber Optic Technology