Arthritis, RheumatoidArthritisArthritis, ExperimentalAntigensArthritis, InfectiousSynovial MembraneAntirheumatic AgentsArthritis, JuvenileSynovial FluidRheumatoid FactorArthritis, PsoriaticJointsAntigens, BacterialArthritis, ReactiveAntigens, SurfaceAntigens, NeoplasmSynovitisOsteoarthritisMethotrexateAntigens, ViralHLA-DR AntigensAntibodies, MonoclonalImmunoglobulin GBlood SedimentationAutoantibodiesSeverity of Illness IndexSulfasalazineRheumatoid NoduleMetacarpophalangeal JointGold Sodium ThiomalateHLA AntigensTumor Necrosis Factor-alphaArthrographyHLA-DRB1 ChainsRheumatologyPeptides, CyclicMice, Inbred DBAHLA-DR4 AntigenRheumatic DiseasesAntigens, CDWrist JointEnzyme-Linked Immunosorbent AssayAntigens, ProtozoanT-LymphocytesFinger JointAntigens, Polyomavirus TransformingEpitopesCollagen Type IIAutoimmune DiseasesTreatment OutcomeCitrullineSpondylitis, AnkylosingAntigens, FungalReceptors, Tumor Necrosis FactorCells, CulturedAntigens, HelminthH-2 AntigensArthritis, GoutyOrganogold CompoundsLupus Erythematosus, SystemicImmunoglobulin MFoot JointsAutoantigensLymphocyte ActivationBiological MarkersAntigen-Antibody ComplexDrug Therapy, CombinationReceptors, Antigen, T-CellHistocompatibility Antigens Class IIB-LymphocytesCytokinesCarcinoembryonic AntigenIsoxazolesAnti-Inflammatory AgentsHydroxychloroquinePenicillamineAntigens, Viral, TumorKnee JointCase-Control StudiesRats, Inbred LewInjections, Intra-ArticularAntibody SpecificityHistocompatibility AntigensAntibodiesTime FactorsPrednisoloneFibroblastsMice, Inbred BALB CHand JointsDisability EvaluationJoint DiseasesGenetic Predisposition to DiseaseAntigens, CD3Molecular Sequence DataReceptors, Antigen, B-CellCross ReactionsProliferating Cell Nuclear AntigenDisease Models, AnimalSpondylarthropathiesAuranofin