Airway ObstructionLungSendai virusRespirovirus InfectionsAntigens, CD11aSleep Apnea, ObstructiveSleep Apnea SyndromesIntestinal ObstructionAirway ResistanceRespiratory MucosaLung Diseases, ObstructiveUreteral ObstructionImmunologic MemoryBronchoalveolar Lavage FluidForced Expiratory VolumeRespiratory Function TestsAsthmaPolysomnographySpirometryVital CapacityLaryngeal DiseasesSleep Apnea, CentralAirway RemodelingLung DiseasesTracheal StenosisBronchiNasal ObstructionMice, Inbred C57BLCD8-Positive T-LymphocytesEpithelial CellsRespiratory MechanicsPulmonary VentilationBronchial DiseasesRespiratory SystemContinuous Positive Airway PressureBronchitisLung Volume MeasurementsPlethysmography, Whole BodyLung NeoplasmsPierre Robin SyndromeBronchial HyperreactivityMaximal Expiratory Flow-Volume CurvesTotal Lung CapacityBronchoscopyRespirationDuodenal ObstructionBronchoconstrictionPulmonary Disease, Chronic ObstructiveBronchodilator AgentsTracheal DiseasesBronchial Provocation TestsUrinary Bladder Neck ObstructionUrethral ObstructionPharynxTracheotomyGastric Outlet ObstructionSnoringLarynxResidual VolumeIntubation, IntratrachealVentricular Outflow ObstructionHeliumLaryngostenosisPositive-Pressure RespirationPulmonary EmphysemaLung InjuryInhalationAdministration, InhalationDyspneaForced Expiratory Flow RatesFunctional Residual CapacityPalate, SoftRespiratory HypersensitivityMaximal Expiratory Flow RateAerosolsAlbuterolLung TransplantationPeak Expiratory Flow RateTracheostomyLaryngeal EdemaEpiglottisSeverity of Illness IndexCarcinoma, Non-Small-Cell LungUvulaMucusAir PressureLaryngeal MasksSmokingRespiratory SoundsTracheal NeoplasmsLacrimal Duct ObstructionSleepOxygenCoughTreatment OutcomeHorse DiseasesTomography, X-Ray ComputedPharyngeal MusclesHigh-Frequency Jet VentilationBronchial Spasm