Antibodies, AntinuclearDucksArabinonucleotidesAutoantibodiesLupus Erythematosus, SystemicAnseriformesFluorescent Antibody Technique, IndirectConnective Tissue DiseasesRheumatic DiseasesAutoimmune DiseasesAutoantigensScleroderma, SystemicSalt GlandRheumatoid FactorArthritis, JuvenileCloacaInfluenza in BirdsChloroflexiScleroderma, LocalizedSmad8 ProteinAnimal MigrationAnimals, WildSjogren's SyndromeEnzyme-Linked Immunosorbent AssayBird DiseasesAntigens, NuclearCentriolesRadioimmunoprecipitation AssayHepatitis, AutoimmuneFluorineAntibodies, Antineutrophil CytoplasmicPolyunsaturated AlkamidesRaynaud DiseaseOral UlcerLiver Cirrhosis, BiliaryMice, Inbred NZBLupus NephritisMontanaFluorescent Antibody TechniqueAntibodies, AnticardiolipinAntibody SpecificityDermatomyositisImmunodiffusionArthritis, RheumatoidImmunologic TestsComplement C4Immunoglobulin GMixed Connective Tissue DiseaseEndocannabinoidsActinomycosisBirdsFusobacteriumVasculitisBacteria, AnaerobicBiological MarkersAutoimmunitySulfasalazineSensitivity and SpecificityFixativesDNAActinomycesMiningTrichloroethyleneImmunoglobulin MRibonucleoproteinsPliabilityArabinoseImmunoglobulinsPoultry DiseasesRiboseImmunoassayRibonucleoproteins, Small NuclearNucleic Acid HeteroduplexesInfluenza A virusArthritisArachidonic AcidsSpecies SpecificitySerologic TestsAntirheumatic AgentsAntibodiesDiagnostic Tests, RoutineNuclear Magnetic Resonance, BiomolecularCell NucleolusMolecular Sequence DataOligonucleotidesRetrospective StudiesRibonuclease HImmunoenzyme TechniquesPhylogenyDrosophila ProteinsPredictive Value of TestsImmunosuppressive AgentsCase-Control StudiesBase SequencePrevalenceImmunoblottingHepatitis C, ChronicAntibody FormationSeroepidemiologic StudiesKidney