Antibodies, AntinuclearEnzyme-Linked Immunosorbent AssayAntibodies, BacterialAntibodies, ViralAntibodiesAntibody SpecificityAutoantibodiesAntibodies, MonoclonalLupus Erythematosus, SystemicFluorescent Antibody TechniqueAntibody FormationAntibodies, NeutralizingFluorescent Antibody Technique, IndirectRheumatoid FactorConnective Tissue DiseasesImmunoglobulin MImmunoglobulin GAntibodies, Anti-IdiotypicAntibody AffinityAutoimmune DiseasesBinding Sites, AntibodyCross ReactionsScleroderma, SystemicEpitopesAntibodies, ProtozoanHIV AntibodiesAntibodies, NeoplasmRheumatic DiseasesSjogren's SyndromeAutoantigensHepatitis, AutoimmuneAntigen-Antibody ComplexRaynaud DiseaseArthritis, JuvenileImmunoglobulin AIritisAntibodies, AntiphospholipidMixed Connective Tissue DiseaseAntibodies, Antineutrophil CytoplasmicSensitivity and SpecificityMice, Inbred BALB CNeutralization TestsSerologic TestsAntibodies, FungalLiver Cirrhosis, BiliaryScleroderma, LocalizedLupus NephritisMolecular Sequence DataAntigen-Antibody ReactionsImmunoassayImmunoenzyme TechniquesImmunoglobulinsPrecipitinsRabbitsAntibodies, BispecificAmino Acid SequenceDNASingle-Chain AntibodiessnRNP Core ProteinsMice, Inbred NZBNephritisAntigensAntibodies, BlockingAutoimmunitySerositisAntibodies, AnticardiolipinImmunodiffusionImmunoglobulin Fab FragmentsAntibodies, HeterophileImmunoblottingMyositisArthritis, RheumatoidAntigens, NuclearB-LymphocytesAntibodies, CatalyticLupus Erythematosus, CutaneousImmune SeraHybridomasComplement System ProteinsEpitope MappingAntigens, BacterialAntibodies, Monoclonal, HumanizedBiological MarkersLupus VulgarisCrithidiaImmunizationBlotting, WesternRecombinant ProteinsComplement C4False Positive ReactionsLupus Erythematosus, DiscoidGlomerulonephritisTime FactorsCell LineRNA, Small CytoplasmicAntigens, ViralMice, Inbred C57BLSeroepidemiologic StudiesMice, Inbred StrainsAntigens, Surface