Arthritis, RheumatoidArthritisArthritis, ExperimentalArthritis, InfectiousSynovial MembraneAntirheumatic AgentsArthritis, JuvenileSynovial FluidRheumatoid FactorArthritis, PsoriaticJointsArthritis, ReactiveSynovitisOsteoarthritisMethotrexateBlood SedimentationSeverity of Illness IndexSulfasalazineAutoantibodiesRheumatoid NoduleMetacarpophalangeal JointGold Sodium ThiomalateArthrographyRheumatologyPeptides, CyclicTumor Necrosis Factor-alphaRheumatic DiseasesHLA-DRB1 ChainsWrist JointMice, Inbred DBAImmunoglobulin GFinger JointHLA-DR4 AntigenHLA-DR AntigensAntibodies, MonoclonalCollagen Type IITreatment OutcomeCitrullineSpondylitis, AnkylosingReceptors, Tumor Necrosis FactorAutoimmune DiseasesArthritis, GoutyOrganogold CompoundsFoot JointsLupus Erythematosus, SystemicDrug Therapy, CombinationIsoxazolesBiological MarkersAnti-Inflammatory AgentsHydroxychloroquineKnee JointPenicillamineInjections, Intra-ArticularCase-Control StudiesDisability EvaluationPrednisoloneTime FactorsHand JointsRats, Inbred LewJoint DiseasesGenetic Predisposition to DiseaseEnzyme-Linked Immunosorbent AssayCells, CulturedCytokinesSpondylarthropathiesAuranofinFibroblastsFelty SyndromeTarsal JointsHand Deformities, AcquiredTenosynovitisT-LymphocytesImmunoglobulin MAntibodies, Monoclonal, HumanizedSjogren's SyndromeFollow-Up StudiesDisease Models, AnimalC-Reactive ProteinCohort StudiesDouble-Blind MethodProtein Tyrosine Phosphatase, Non-Receptor Type 22InflammationGlucocorticoidsAutoantigensInterleukin-6AurothioglucosePainProspective StudiesHandDisease ProgressionCollagenAntigen-Antibody ComplexAntibodies, AntinuclearInterleukin-1Metatarsophalangeal JointInterleukin-17GenotypePain MeasurementAnti-Inflammatory Agents, Non-SteroidalCartilage, Articular