Lupus NephritisNephritisPrevalenceLung Diseases, InterstitialGlomerulonephritisKidney GlomerulusCystitis, InterstitialProteinuriaHeymann Nephritis Antigenic ComplexInterstitial Cells of CajalKidneyLupus Erythematosus, SystemicAntibodies, AntinuclearExtracellular FluidPurpura, Schoenlein-HenochMice, Inbred NZBKidney TubulesNephritis, HereditaryAutoantibodiesMice, Inbred MRL lprGlomerulonephritis, MembranoproliferativeCross-Sectional StudiesBiopsyRisk FactorsBasement MembraneFibrosisGlomerulonephritis, MembranousAntigen-Antibody ComplexIdiopathic Interstitial PneumoniasPulmonary FibrosisImmune Complex DiseasesExtracellular SpaceImmunoglobulin GImmunosuppressive AgentsKidney DiseasesRetrospective StudiesDisease Models, AnimalAge DistributionAge FactorsGlomerulonephritis, IGATime FactorsPrednisoloneAnti-Glomerular Basement Membrane DiseaseImmunohistochemistrySeverity of Illness IndexComplement C3Sex DistributionSex FactorsBrazilAutoimmune DiseasesMycophenolic AcidComplement C1qBiological MarkersLungSerum SicknessCreatinineFluorescent Antibody TechniqueChronic DiseaseUnited StatesAzathioprineQuestionnairesMicrodialysisHealth SurveysDisease ProgressionGlomerular MesangiumGlomerular Basement MembraneIndiaCohort StudiesLogistic ModelsAutoantigensChinaIncidenceAcute DiseaseRural PopulationEnzyme-Linked Immunosorbent AssayProspective StudiesFollow-Up StudiesPolymerase Chain ReactionTreatment OutcomeSmokingCyclophosphamideCollagenUreteral ObstructionKidney Failure, ChronicUrban PopulationNephrotic SyndromeHematuriaSocioeconomic FactorsInfant, NewbornRats, Inbred LewCase-Control StudiesAntibodiesIdiopathic Pulmonary FibrosisComorbidityMethylprednisoloneGenotypePregnancyMicroscopy, ElectronGlomerulosclerosis, Focal SegmentalComplement System Proteins