Lung DiseasesLung Diseases, InterstitialLung Diseases, ObstructiveLungAirway ObstructionPulmonary Disease, Chronic ObstructiveIntestinal ObstructionSleep Apnea, ObstructiveUreteral ObstructionJaundice, ObstructiveRespiratory Function TestsLung NeoplasmsForced Expiratory VolumeDuodenal ObstructionSpirometryUrethral ObstructionNasal ObstructionVital CapacityUrinary Bladder Neck ObstructionVentricular Outflow ObstructionPulmonary FibrosisGastric Outlet ObstructionLung TransplantationLung InjuryPolysomnographyPulmonary EmphysemaCholestasisCystic FibrosisBronchoalveolar Lavage FluidCarcinoma, Non-Small-Cell LungBronchodilator AgentsTomography, X-Ray ComputedLung Volume MeasurementsSeverity of Illness IndexDyspneaSmokingLacrimal Duct ObstructionTreatment OutcomeAsthmaTotal Lung CapacityAcute Lung InjuryBronchiSleep Apnea SyndromesChronic DiseaseBronchitisCholestasis, ExtrahepaticFarmer's LungAdministration, InhalationRetrospective StudiesHydronephrosisBronchiectasisPulmonary AlveoliPneumoniaIdiopathic Pulmonary FibrosisContinuous Positive Airway PressureAirway ResistanceEmphysemaCardiomyopathy, HypertrophicRespiratory MucosaBronchoscopyOxygen Inhalation TherapyRespiratory MechanicsSputumProspective StudiesAlveolitis, Extrinsic AllergicBronchial DiseasesPulmonary VentilationCase-Control StudiesFollow-Up StudiesOxygenRespiration, ArtificialInfant, NewbornRespirationSnoringBronchopulmonary DysplasiaPositive-Pressure RespirationBronchoalveolar LavageRespiratory InsufficiencyTime FactorsPulmonary Diffusing CapacityRisk FactorsRadiography, ThoracicRespiratory SystemBronchitis, ChronicMucusPulmonary Gas ExchangeBezoarsalpha 1-Antitrypsin DeficiencyExhalationBronchiolitis ObliteransConstriction, PathologicRespiratory TherapyExercise ToleranceSensitivity and SpecificityPrognosisAnoxiaAcute DiseaseRespiratory Distress Syndrome, NewbornAlbuterolFunctional Residual Capacity