Idiopathic Pulmonary FibrosisPulmonary FibrosisLung Diseases, InterstitialIdiopathic Interstitial PneumoniasLungPneumoniaBleomycinCryptogenic Organizing PneumoniaFibrosisBronchoalveolar Lavage FluidAlveolitis, Extrinsic AllergicCollagen DiseasesPneumonia, BacterialBronchoalveolar LavageCystic FibrosisPulmonary AlveoliRespiratory Function TestsSarcoidosis, PulmonaryPneumonia, ViralPulmonary Surfactant-Associated Protein CBiopsyConnective Tissue DiseasesFibroblastsPulmonary Diffusing CapacityTomography, X-Ray ComputedHydroxyprolineVital CapacityLung TransplantationMyofibroblastsPneumonia, PneumococcalLung DiseasesPneumonia, PneumocystisPyridonesPulmonary Surfactant-Associated Protein ADermatomyositisHSP47 Heat-Shock ProteinsTotal Lung CapacityPneumocytesRetrospective StudiesPrednisoloneMucin-5BScleroderma, SystemicRespiratory System AgentsFatal OutcomeSarcoidosisDisease ProgressionRadiography, ThoracicDyspneaHemoperfusionAcute DiseaseBiological MarkersMacrophages, AlveolarPulmonary EmphysemaRespiratory AspirationCollagenTransforming Growth Factor beta1PrognosisMucin-1Pulmonary Surfactant-Associated Protein DImmunohistochemistryDisease Models, AnimalTransforming Growth Factor betaPulmonary MedicinePneumonia, Progressive Interstitial, of SheepHypertension, PulmonaryBird Fancier's LungSeverity of Illness IndexPneumonia, StaphylococcalPneumonia, Atypical Interstitial, of CattleRespiratory InsufficiencyTreatment OutcomeHermanski-Pudlak SyndromeRespiratory MucosaMice, Inbred C57BLCase-Control StudiesGlucocorticoidsAdrenal Cortex HormonesAutopsyEpithelial CellsImmunosuppressive AgentsPolymyositisTime FactorsLung InjuryPneumonia, Ventilator-AssociatedAntibiotics, AntineoplasticAnti-Inflammatory AgentsCystitis, InterstitialPredictive Value of TestsPneumonia, AspirationEnzyme-Linked Immunosorbent AssayPrimary Graft DysfunctionCollagen Type IInterstitial Cells of CajalDiagnostic Techniques, Respiratory SystemLung Diseases, ParasiticBronchiolitisPulmonary EosinophiliaTherapeutic IrrigationAutoantibodiesMethylprednisolone