Arthritis, ExperimentalMice, Inbred DBAArthritis, RheumatoidArthritisArthritis, InfectiousArthritis, JuvenileArthritis, PsoriaticArthritis, ReactiveSynovial MembraneJointsSynovial FluidArthritis, GoutyRheumatoid FactorSynovitisOsteoarthritisCollagen Type IISeverity of Illness IndexMethotrexateAutoantibodiesRats, Inbred LewBlood SedimentationInjections, Intra-ArticularTumor Necrosis Factor-alphaImmunoglobulin GRheumatic DiseasesArthrographyRheumatologyKnee JointTime FactorsDisease Models, AnimalTreatment OutcomeSpondylitis, AnkylosingMetacarpophalangeal JointAutoimmune DiseasesSulfasalazinePeptides, CyclicAntibodies, MonoclonalWrist JointCollagenHLA-DRB1 ChainsGold Sodium ThiomalateRheumatoid NoduleFinger JointTarsal JointsAnti-Inflammatory AgentsLyme DiseaseReceptors, Tumor Necrosis FactorHLA-DR4 AntigenJoint DiseasesHLA-DR AntigensCytokinesPsoriasis