Airway ObstructionLaryngostenosisGlottisLaryngeal DiseasesTracheal StenosisLaryngeal EdemaLaryngoscopyLarynxTracheotomyRespiratory SoundsTracheostomyIntubation, IntratrachealCricoid CartilageIntestinal ObstructionBronchoscopyAirway ResistanceTracheal DiseasesLaryngeal NeoplasmsUreteral ObstructionLung Diseases, ObstructiveLaryngomalaciaLaryngeal MucosaLaryngismusTracheal NeoplasmsForced Expiratory VolumeRespiratory Function TestsLaser TherapyAsthmaEpiglottisVocal Cord ParalysisBronchial DiseasesSpirometryAirway RemodelingVital CapacityDyspneaLaryngeal CartilagesVocal Cord DysfunctionHigh-Frequency Jet VentilationAirway ExtubationBronchiWegener GranulomatosisTongue DiseasesLaryngitisGranuloma, LaryngealNasal ObstructionVocal CordsTracheobronchomalaciaPolychondritis, RelapsingLungCroupLaryngoplastyRespiratory SystemBronchitisPierre Robin SyndromeDuodenal ObstructionBronchial HyperreactivityPrecipitating FactorsPlethysmography, Whole BodyMaximal Expiratory Flow-Volume CurvesPulmonary VentilationBronchoconstrictionFiber Optic TechnologyUrinary Bladder Neck ObstructionUrethral ObstructionTomography, X-Ray ComputedBronchial Provocation TestsBronchodilator AgentsPulmonary Disease, Chronic ObstructiveGastric Outlet ObstructionTracheaRespiratory MechanicsRetropharyngeal AbscessTotal Lung CapacityVentricular Outflow ObstructionResidual VolumeTracheitisPneumonia, AspirationCicatrixRespiratory MucosaHeliumLung Volume MeasurementsConstriction, PathologicPeak Expiratory Flow RateForced Expiratory Flow RatesAlbuterolRespiratory Tract DiseasesMaximal Expiratory Flow RateBronchoalveolar Lavage FluidRespiratory HypersensitivityAdministration, InhalationPulmonary EmphysemaFunctional Residual CapacityLacrimal Duct ObstructionShy-Drager SyndromeAerosolsRespirationLaryngeal MasksTreatment OutcomeInhalationHorse Diseases