Pulmonary EmphysemaEmphysemaSubcutaneous EmphysemaMediastinal EmphysemaChest PainChest TubesRadiography, ThoracicLungalpha 1-Antitrypsin DeficiencyPancreatic ElastaseTomography, X-Ray ComputedPulmonary Disease, Chronic ObstructiveThoracic WallRespiratory Function TestsPneumonectomyTotal Lung CapacityThoraxSmokeSmokingForced Expiratory VolumeMatrix Metalloproteinase 12alpha 1-AntitrypsinLung Volume MeasurementsPulmonary AlveoliMass Chest X-RayFlail ChestThoracic InjuriesHeliumVital CapacitySpirometryPulmonary Diffusing CapacityBronchitisResidual VolumeAirway ObstructionLung DiseasesPulmonary FibrosisPulmonary Heart DiseaseBronchitis, ChronicBronchoscopyThoracic NeoplasmsBronchographyDyspneaElastinBronchoalveolar Lavage FluidThoracostomyLung CompliancePneumoconiosisSeverity of Illness IndexRadiographic Image Interpretation, Computer-AssistedCoal MiningChest Wall OscillationFunnel ChestPneumoniaHeart MassagePneumopericardiumDiaphragmThoracic DiseasesRibsPleural DiseasesWounds, NonpenetratingPneumothoraxFunctional Residual CapacityThoracoscopySternumLeukocyte ElastaseLung NeoplasmsLung Diseases, ObstructiveRespiratory MechanicsRib FracturesSensitivity and SpecificityRetrospective StudiesDesmosineDisease Models, AnimalBronchiectasisTreatment OutcomeTime FactorsAirway ResistanceTobaccoLung Diseases, InterstitialBronchiFollow-Up StudiesExercise ToleranceBronchoalveolar LavagePulmonary Surfactant-Associated Protein DDrainageSpiritualismRadiographic Image EnhancementBarotraumaSilicosisThoracotomyOxygen Inhalation TherapyPhenotypeBronchiolesProspective StudiesPulmonary VentilationLung, HyperlucentSerpin E2Thoracic Surgical ProceduresMacrophages, AlveolarReproducibility of Results