Dermatitis, ExfoliativeArthritis, PsoriaticPsoriasisIchthyosiform Erythroderma, CongenitalArthritis, RheumatoidArthritisHyperkeratosis, EpidermolyticIchthyosis, LamellarArthritis, ExperimentalIchthyosisEtretinateArthritis, InfectiousArthritis, JuvenileDrug EruptionsSezary SyndromeArthritis, ReactiveJointsSkinAntirheumatic AgentsDermatologyDermatologic AgentsSynovial MembraneSpondylitis, AnkylosingSynovial FluidNail DiseasesLymphoma, T-Cell, CutaneousSeverity of Illness IndexSynovitisRheumatic DiseasesSkin DiseasesHand JointsRheumatoid FactorReceptors, Tumor Necrosis FactorHLA-C AntigensSpondylitisTumor Necrosis Factor-alphaMethotrexateSpondylarthropathiesToe JointOsteoarthritisAntibodies, MonoclonalArthrographyBlood SedimentationFinger JointImmunoglobulin GSpondylarthritisFoot JointsSyndromeTreatment OutcomePeriostitisAntibodies, Monoclonal, HumanizedSkin NeoplasmsShock, SepticArthritis, GoutyGenetic Predisposition to DiseaseRheumatologyPUVA TherapyUltraviolet TherapySacroiliac JointHLA-B27 AntigenMice, Inbred DBAAnti-Inflammatory AgentsIritisAutoantibodiesKnee JointInjections, Intra-ArticularDouble-Blind MethodCase-Control StudiesBiological ProductsImmunosuppressive AgentsBiological MarkersAutoimmune DiseasesImmunologic FactorsCollagen Type IIDisability EvaluationAge of OnsetCornified Envelope Proline-Rich ProteinsJoint Diseases