Lung Diseases, InterstitialLung DiseasesLungLung Diseases, ObstructivePulmonary FibrosisLung NeoplasmsCystitis, InterstitialLung TransplantationInterstitial Cells of CajalLung InjuryRespiratory Function TestsBronchoalveolar Lavage FluidCarcinoma, Non-Small-Cell LungIdiopathic Pulmonary FibrosisExtracellular FluidCystic FibrosisPulmonary AlveoliAlveolitis, Extrinsic AllergicAcute Lung InjuryFarmer's LungIdiopathic Interstitial PneumoniasPulmonary Disease, Chronic ObstructiveLung Volume MeasurementsVital CapacityTomography, X-Ray ComputedPulmonary EmphysemaDermatomyositisPneumoniaForced Expiratory VolumeChronic DiseaseTotal Lung CapacityFibrosisSpirometryExtracellular SpaceBronchoalveolar LavageRetrospective StudiesRadiography, ThoracicScleroderma, SystemicBronchopulmonary DysplasiaPulmonary Surfactant-Associated Protein CBronchiectasisSmokingRespiratory MucosaPulmonary Diffusing CapacityBronchiGerminal CenterTreatment OutcomeSarcoidosis, PulmonaryImmunohistochemistryRespiratory Distress Syndrome, NewbornInfant, NewbornBiopsyPolymyositisSarcoidosisMacrophages, AlveolarKidneyMice, Inbred C57BLRespiration, ArtificialTime FactorsSeverity of Illness IndexChild Day Care CentersConnective Tissue DiseasesCollagen DiseasesBronchiolitis ObliteransPulmonary EdemaInfant, Premature, DiseasesDyspneaBronchoscopyPulmonary SurfactantsInfant, PrematureAsthmaPneumoconiosisRisk FactorsExtravascular Lung WaterLung Diseases, FungalRNA, MessengerBiological MarkersAdministration, InhalationDisease ProgressionPrognosisMicrodialysisLung AbscessHypertension, PulmonaryFibroblastsOxygenEpithelial CellsCollagenBleomycinCase-Control StudiesAsbestosisFollow-Up StudiesProspective StudiesSilicosisEmphysemaCells, CulturedKidney TubulesCryptogenic Organizing PneumoniaRespiratory InsufficiencySputumDisease Models, Animal