Lung Diseases, InterstitialPneumoniaLung DiseasesLungPneumonia, BacterialPneumonia, ViralPneumonia, PneumococcalCryptogenic Organizing PneumoniaLung Diseases, ObstructivePneumonia, PneumocystisPulmonary FibrosisPneumonia, StaphylococcalLung NeoplasmsPneumonia, Ventilator-AssociatedBronchoalveolar Lavage FluidCystitis, InterstitialPneumonia, AspirationLung InjuryIdiopathic Interstitial PneumoniasLung TransplantationInterstitial Cells of CajalPneumonia, MycoplasmaCommunity-Acquired InfectionsRespiratory Function TestsIdiopathic Pulmonary FibrosisCarcinoma, Non-Small-Cell LungPneumonia, LipidRadiography, ThoracicPulmonary AlveoliExtracellular FluidCystic FibrosisBronchoalveolar LavageAlveolitis, Extrinsic AllergicAcute Lung InjuryTomography, X-Ray ComputedFarmer's LungPulmonary Disease, Chronic ObstructiveDermatomyositisVital CapacityRespiration, ArtificialLung Volume MeasurementsRetrospective StudiesPulmonary EmphysemaForced Expiratory VolumeChronic DiseaseTotal Lung CapacityPulmonary EosinophiliaSpirometryFibrosisBronchoscopySeverity of Illness IndexAnti-Bacterial AgentsTreatment OutcomeExtracellular SpaceScleroderma, SystemicMacrophages, AlveolarPulmonary Surfactant-Associated Protein CBronchiectasisBronchiRespiratory MucosaInfant, NewbornBronchopulmonary DysplasiaBiopsyFatal OutcomeLung AbscessPneumocystis jiroveciiSmokingSputumPulmonary Diffusing CapacitySarcoidosis, PulmonaryMice, Inbred C57BLProspective StudiesLung Diseases, FungalStreptococcus pneumoniaeRisk FactorsPolymyositisImmunohistochemistryConnective Tissue DiseasesCollagen DiseasesRespiratory Distress Syndrome, NewbornPneumocystisRespiratory InsufficiencyTime FactorsDisease Models, AnimalDyspneaBronchopneumoniaPneumonia, Progressive Interstitial, of SheepAdministration, InhalationSarcoidosisPulmonary EdemaMurine pneumonia virusBronchiolitis ObliteransBiological MarkersPseudomonas InfectionsMycoplasma pneumoniaeAcute DiseaseBronchitisKidneyPrognosisBronchiolitis