Lung Diseases, InterstitialPulmonary FibrosisLung DiseasesLungDermatomyositisIdiopathic Pulmonary FibrosisScleroderma, SystemicPolymyositisAlveolitis, Extrinsic AllergicSarcoidosis, PulmonaryRespiratory Function TestsPulmonary Surfactant-Associated Protein CBronchoalveolar Lavage FluidConnective Tissue DiseasesHistidine-tRNA LigaseCollagen DiseasesTomography, X-Ray ComputedSarcoidosisMyositisPulmonary Diffusing CapacityBronchoalveolar LavageVital CapacityRadiography, ThoracicPulmonary AlveoliDyspneaLung NeoplasmsBiopsyPulmonary Surfactant-Associated Protein BIdiopathic Interstitial PneumoniasRetrospective StudiesLung TransplantationTotal Lung CapacityBronchiolitisLung Diseases, ObstructiveMediastinal EmphysemaSeverity of Illness IndexAutoantibodiesCryptogenic Organizing PneumoniaDisease ProgressionMixed Connective Tissue DiseaseLung Volume MeasurementsHypertension, PulmonaryBiological MarkersSmokingTreatment OutcomeSpirometryLactate DehydrogenasesCarcinoma, Non-Small-Cell LungChronic DiseaseHistiocytosis, Langerhans-CellMycoplasmatalesScleroderma, DiffuseMucin-1BronchoscopyQuinazolinesMeningeal CarcinomatosisPrognosisImmunosuppressive AgentsMacrophages, AlveolarBronchiolitis ObliteransCystitis, InterstitialHermanski-Pudlak SyndromeBirt-Hogg-Dube SyndromeForced Expiratory VolumePneumoniaPulmonary EosinophiliaAsbestosisPneumoconiosisPulmonary Surfactant-Associated Protein DPulmonary Alveolar ProteinosisPulmonary MedicineBleomycinPulmonary Gas ExchangeAnti-Inflammatory AgentsFatal OutcomePulmonary Disease, Chronic ObstructiveInterstitial Cells of CajalPrednisoloneLung InjuryArthritis, RheumatoidCase-Control StudiesThoracic Surgery, Video-AssistedEsophageal pH MonitoringRespiratory InsufficiencyNew MexicoAntibodies, AntinuclearHydroxychloroquinePulmonary SurfactantsTechnetium Tc 99m PentetateFollow-Up StudiesJapanPleural DiseasesLymphangioleiomyomatosisSensitivity and SpecificityBird Fancier's LungRisk FactorsAntirheumatic AgentsRadiographic Image Interpretation, Computer-AssistedCyclophosphamidePulmonary Emphysema