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 JointAntibodies, MonoclonalHLA-DR4 AntigenHLA-DR AntigensCollagen Type IITreatment OutcomeCitrullineSpondylitis, AnkylosingReceptors, Tumor Necrosis FactorFemale Athlete Triad SyndromeArthritis, GoutyAutoimmune DiseasesOrganogold CompoundsFoot JointsLupus Erythematosus, SystemicDrug Therapy, CombinationIsoxazolesBiological MarkersHydroxychloroquineAnti-Inflammatory AgentsPenicillamineKnee JointInjections, Intra-ArticularCase-Control StudiesHand JointsDisability EvaluationGenetic Predisposition to DiseasePrednisoloneJoint DiseasesRats, Inbred LewCells, CulturedEnzyme-Linked Immunosorbent AssayCytokinesSpondylarthropathiesAuranofinAcid Anhydride HydrolasesFelty SyndromeTarsal JointsHand Deformities, AcquiredFibroblastsTenosynovitisT-LymphocytesAntibodies, Monoclonal, HumanizedSjogren's SyndromeC-Reactive ProteinImmunoglobulin MProtein Tyrosine Phosphatase, Non-Receptor Type 22AurothioglucoseDouble-Blind MethodCohort StudiesGlucocorticoidsTime FactorsInflammationAutoantigensDisease Models, AnimalInterleukin-6Follow-Up StudiesAntigen-Antibody ComplexPainCollagenHandAntibodies, AntinuclearProspective StudiesInterleukin-1Metatarsophalangeal JointInterleukin-17GenotypeHydrolasesDisease Progression