Arthritis, RheumatoidArthritisArthritis, ExperimentalArthritis, InfectiousSynovial MembraneAntirheumatic AgentsArthritis, JuvenileSynovial FluidRheumatoid FactorArthritis, PsoriaticJointsArthritis, ReactiveSynovitisOsteoarthritisMethotrexateBlood SedimentationSeverity of Illness IndexSulfasalazineRheumatoid NoduleMetacarpophalangeal JointAutoantibodiesGold Sodium ThiomalateArthrographyRheumatologyPeptides, CyclicTumor Necrosis Factor-alphaRheumatic DiseasesHLA-DRB1 ChainsWrist JointMice, Inbred DBAImmunoglobulin GFinger JointHLA-DR4 AntigenHLA-DR AntigensAntibodies, MonoclonalCollagen Type IICitrullineTreatment OutcomeSpondylitis, AnkylosingReceptors, Tumor Necrosis FactorArthritis, GoutyAutoimmune DiseasesOrganogold CompoundsFoot JointsLupus Erythematosus, SystemicDrug Therapy, CombinationIsoxazolesHydroxychloroquineAnti-Inflammatory AgentsPenicillamineKnee JointBiological MarkersInjections, Intra-ArticularCase-Control StudiesHand JointsDisability EvaluationPrednisoloneJoint DiseasesRats, Inbred LewEnzyme-Linked Immunosorbent AssayCytokinesGenetic Predisposition to DiseaseSpondylarthropathiesAuranofinCells, CulturedFelty SyndromeTarsal JointsHand Deformities, AcquiredFibroblastsTenosynovitisAntibodies, Monoclonal, HumanizedT-LymphocytesSjogren's SyndromeC-Reactive ProteinImmunoglobulin MProtein Tyrosine Phosphatase, Non-Receptor Type 22AurothioglucoseDouble-Blind MethodGlucocorticoidsInflammationAutoantigensInterleukin-6Cohort StudiesFollow-Up StudiesAntigen-Antibody ComplexPainDisease Models, AnimalCollagenHandAntibodies, AntinuclearTime FactorsInterleukin-1Metatarsophalangeal JointInterleukin-17Prospective StudiesCartilage, ArticularAnti-Inflammatory Agents, Non-SteroidalInterleukin 1 Receptor Antagonist ProteinBiological ProductsPain Measurement