Arthritis, RheumatoidAntirheumatic AgentsArthritisMethotrexateArthritis, ExperimentalJointsSulfasalazineArthritis, InfectiousIsoxazolesDrug Therapy, CombinationSynovial MembraneDouble-Blind MethodSeverity of Illness IndexArthritis, JuvenileSynovial FluidRheumatoid FactorBlood SedimentationArthritis, PsoriaticTreatment OutcomeAntibodies, MonoclonalGold Sodium ThiomalateHydroxychloroquineArthritis, ReactiveArthrographyFinger JointTumor Necrosis Factor-alphaReceptors, Tumor Necrosis FactorAntibodies, Monoclonal, HumanizedImmunoglobulin GInjections, SubcutaneousSynovitisAnti-Inflammatory Agents, Non-SteroidalPrednisoloneOsteoarthritisAntibodies, Monoclonal, Murine-DerivedImmunoconjugatesGlucocorticoidsC-Reactive ProteinPlacebosImmunosuppressive AgentsDose-Response Relationship, DrugDisability EvaluationMice, Inbred DBAAutoantibodiesMetacarpophalangeal JointArthritis, GoutyDisease ProgressionRheumatoid NoduleRheumatologyRheumatic DiseasesHealth StatusDrug Administration SchedulePeptides, CyclicCollagen Type IIFollow-Up StudiesHLA-DRB1 ChainsProspective StudiesWrist JointHLA-DR4 AntigenHLA-DR AntigensSpondylitis, AnkylosingCitrullineAutoimmune DiseasesInjections, Intra-ArticularRats, Inbred LewKnee JointFoot JointsOrganogold CompoundsAnti-Inflammatory AgentsLupus Erythematosus, SystemicBiological MarkersPenicillamineJoint DiseasesTarsal JointsHand JointsCytokinesSpondylarthropathiesEnzyme-Linked Immunosorbent AssayCase-Control StudiesCells, CulturedGenetic Predisposition to DiseaseCollagenDisease Models, AnimalTenosynovitisT-LymphocytesInflammationFibroblastsAuranofinHand Deformities, AcquiredFelty SyndromeInterleukin-6Immunoglobulin MPainAutoantigensSjogren's SyndromeCartilage, ArticularInterleukin-17Protein Tyrosine Phosphatase, Non-Receptor Type 22Interleukin-1Psoriasis