Idiopathic Interstitial PneumoniasLung Diseases, InterstitialIdiopathic Pulmonary FibrosisPulmonary FibrosisCryptogenic Organizing PneumoniaConnective Tissue DiseasesLungBronchoalveolar LavageBiopsyInterleukin-13 Receptor alpha1 SubunitBronchoalveolar Lavage FluidTomography, X-Ray ComputedRespiratory Function TestsPneumoniaPulmonary Surfactant-Associated Protein CBleomycinFibrosisPrognosisRetrospective StudiesAlveolitis, Extrinsic AllergicPulmonary Surfactant-Associated Protein ARadiography, ThoracicCollagen DiseasesPneumonia, BacterialPulmonary AlveoliCystic FibrosisSarcoidosis, PulmonaryPneumonia, ViralBiological MarkersFibroblastsPulmonary Diffusing CapacityHydroxyprolineVital CapacityLung TransplantationMyofibroblastsPneumonia, PneumococcalLung DiseasesPyridonesPneumonia, PneumocystisDermatomyositisPrednisoloneHSP47 Heat-Shock ProteinsTotal Lung Capacity