Lung Diseases, InterstitialIdiopathic Interstitial PneumoniasIdiopathic Pulmonary FibrosisPulmonary FibrosisLungConnective Tissue DiseasesCryptogenic Organizing PneumoniaLung DiseasesPulmonary Surfactant-Associated Protein CBronchoalveolar Lavage FluidRespiratory Function TestsAlveolitis, Extrinsic AllergicBronchoalveolar LavageBleomycinDermatomyositisBiopsyTomography, X-Ray ComputedSarcoidosis, PulmonaryScleroderma, SystemicFibrosisRadiography, ThoracicPolymyositisPulmonary AlveoliPulmonary Diffusing CapacityCollagen DiseasesSarcoidosisPulmonary Surfactant-Associated Protein AVital CapacityLung TransplantationCystic FibrosisRetrospective StudiesInterleukin-13 Receptor alpha1 SubunitBiological MarkersPrognosisDyspneaTotal Lung CapacityMyositisHistidine-tRNA LigaseFibroblastsHypertension, PulmonaryDisease ProgressionLung NeoplasmsHydroxyprolineMyofibroblastsSeverity of Illness IndexMacrophages, AlveolarAutoantibodiesPyridonesPulmonary Surfactant-Associated Protein DPneumocytesRespiratory System AgentsLung InjuryPulmonary EmphysemaPrednisoloneTreatment OutcomeCase-Control StudiesMucin-5BLung Volume MeasurementsPulmonary MedicinePulmonary Surfactant-Associated Protein BPneumoniaTransforming Growth Factor beta1SmokingPulmonary Gas ExchangeLung Diseases, ObstructiveChronic DiseaseImmunosuppressive AgentsBronchiolitisMucin-1CollagenAnti-Inflammatory AgentsSpirometryHermanski-Pudlak SyndromeForced Expiratory VolumeMediastinal EmphysemaBronchiolitis ObliteransTransforming Growth Factor betaAsbestosisMice, Inbred C57BLDisease Models, AnimalImmunohistochemistryRespiratory MucosaRespiratory AspirationEpithelial CellsBird Fancier's LungScoliosisFatal OutcomeScleroderma, DiffuseRespiratory InsufficiencySensitivity and SpecificityMixed Connective Tissue DiseaseAcute DiseaseFollow-Up StudiesPulmonary SurfactantsBronchoscopyExercise TestPredictive Value of TestsArthritis, JuvenileAdrenal Cortex HormonesPneumoconiosis