Airway ObstructionOxygenIntestinal ObstructionAirway ResistanceUreteral ObstructionLung Diseases, ObstructiveForced Expiratory VolumeRespiratory Function TestsAsthmaSpirometryLaryngeal DiseasesAirway RemodelingVital CapacityTracheal StenosisBronchiNasal ObstructionOxygen ConsumptionLungBronchial DiseasesReactive Oxygen SpeciesRespiratory SystemBronchitisPierre Robin SyndromeDuodenal ObstructionBronchial HyperreactivityPlethysmography, Whole BodyMaximal Expiratory Flow-Volume CurvesPulmonary VentilationBronchoscopyBronchoconstrictionUrinary Bladder Neck ObstructionUrethral ObstructionTracheal DiseasesBronchial Provocation TestsBronchodilator AgentsRespiratory MechanicsPulmonary Disease, Chronic ObstructiveGastric Outlet ObstructionTotal Lung CapacityVentricular Outflow ObstructionTracheotomyHeliumLaryngostenosisResidual VolumeOxygen Inhalation TherapyIntubation, IntratrachealLung Volume MeasurementsRespiratory MucosaDyspneaLarynxPeak Expiratory Flow RateForced Expiratory Flow RatesRespirationAlbuterolLaryngeal EdemaBronchoalveolar Lavage FluidMaximal Expiratory Flow RateAdministration, InhalationRespiratory HypersensitivityPulmonary EmphysemaFunctional Residual CapacityTracheostomyInhalationAerosolsLacrimal Duct ObstructionEpiglottisLaryngeal MasksTracheal NeoplasmsHorse DiseasesMucusHigh-Frequency Jet VentilationCoughAirway ManagementBronchial SpasmRespiratory SoundsSleep Apnea SyndromesPharynxSleep Apnea, ObstructiveTongue DiseasesLaryngoceleAir PressureFiber Optic TechnologySinglet OxygenBronchographyAtropine DerivativesPlethysmographyTomography, X-Ray ComputedContinuous Positive Airway PressureSmokingCroupLaryngoscopyLung ComplianceAuscultationEosinophilsIpratropiumLaryngismusLung DiseasesCarbon DioxideTreatment OutcomeMaximal Midexpiratory Flow Rate