Airway ObstructionLaryngeal EdemaRespiratory SoundsLaryngeal DiseasesIntestinal ObstructionAirway ResistanceTracheal StenosisUreteral ObstructionLarynxLung Diseases, ObstructiveLaryngomalaciaLaryngoscopyLaryngismusIntubation, IntratrachealForced Expiratory VolumeTracheal NeoplasmsBronchoscopyAsthmaRespiratory Function TestsEpiglottisSpirometryVocal Cord ParalysisBronchial DiseasesAirway RemodelingTracheotomyTracheal DiseasesVital CapacityAirway ExtubationTracheostomyLaryngostenosisBronchiTongue DiseasesNasal ObstructionLaryngitisVocal CordsTracheobronchomalaciaLungCroupBronchitisRespiratory SystemDyspneaGlottisBronchial HyperreactivityPierre Robin SyndromeDuodenal ObstructionPrecipitating FactorsMaximal Expiratory Flow-Volume CurvesPlethysmography, Whole BodyPulmonary VentilationBronchoconstrictionFiber Optic TechnologyUrinary Bladder Neck ObstructionBronchial Provocation TestsBronchodilator AgentsUrethral ObstructionPulmonary Disease, Chronic ObstructiveGastric Outlet ObstructionRespiratory MechanicsRetropharyngeal AbscessTotal Lung CapacityVentricular Outflow ObstructionTracheitisResidual VolumeRespiratory Tract DiseasesRespiratory MucosaLung Volume MeasurementsPeak Expiratory Flow RateHeliumTomography, X-Ray ComputedRespiratory HypersensitivityForced Expiratory Flow RatesAlbuterolLaser TherapyMaximal Expiratory Flow RateCoughBronchoalveolar Lavage FluidAdministration, InhalationPulmonary EmphysemaFunctional Residual CapacityLacrimal Duct ObstructionSeverity of Illness IndexAerosolsShy-Drager SyndromeRespirationTreatment OutcomeRespiratory InsufficiencyLaryngeal NeoplasmsLaryngeal MasksMucusInhalationHorse DiseasesInfant, NewbornHigh-Frequency Jet VentilationCystsBronchial SpasmAirway ManagementSleep Apnea, ObstructivePharynxSleep Apnea SyndromesMacroglossia