Lung DiseasesLung Diseases, InterstitialLungLung Diseases, ObstructivePulmonary Disease, Chronic ObstructiveSleep Apnea, ObstructiveJaundice, ObstructiveLung NeoplasmsRespiratory Function TestsPulmonary FibrosisForced Expiratory VolumeLung TransplantationLung InjurySpirometryVital CapacityPolysomnographyCarcinoma, Non-Small-Cell LungCystic FibrosisBronchoalveolar Lavage FluidPulmonary EmphysemaLung Volume MeasurementsBronchodilator AgentsAcute Lung InjurySmokingSeverity of Illness IndexFarmer's LungDyspneaIdiopathic Pulmonary FibrosisSleep Apnea SyndromesAirway ObstructionPulmonary AlveoliPneumoniaTotal Lung CapacityAdministration, InhalationTomography, X-Ray ComputedContinuous Positive Airway PressureChronic DiseaseBronchiBronchiectasisRespiratory MucosaAlveolitis, Extrinsic AllergicOxygen Inhalation TherapyAsthmaTreatment OutcomeSputumBronchitisEmphysemaBronchopulmonary DysplasiaRespiratory MechanicsRespiration, ArtificialCase-Control StudiesRisk FactorsRetrospective StudiesOxygenBronchoalveolar LavagePositive-Pressure RespirationRespiratory InsufficiencyRadiography, ThoracicSnoringPulmonary Diffusing CapacityProspective StudiesBronchoscopyCholestasisBronchitis, ChronicRespirationMacrophages, AlveolarPulmonary VentilationBronchiolitis Obliteransalpha 1-Antitrypsin DeficiencyRespiratory Distress Syndrome, NewbornPulmonary Gas ExchangeScleroderma, SystemicDermatomyositisAnoxiaRespiratory SystemMucusExhalationInfant, NewbornExercise TolerancePulmonary Surfactant-Associated Protein CPulmonary MedicineCardiomyopathy, HypertrophicRespiratory System AgentsAirway ResistanceFollow-Up StudiesRespiratory TherapyHypertension, PulmonaryLung Diseases, FungalUvulaSmokeBiological MarkersPalate, SoftInfant, PrematureInfant, Premature, DiseasesRespiratory MusclesPrognosisLung AbscessPulmonary SurfactantsDisease ProgressionPrevalence