Blood SedimentationErythrocytesArthritis, RheumatoidPolymyalgia RheumaticaC-Reactive ProteinGiant Cell ArteritisAntirheumatic AgentsErythrocyte MembraneSpondylitis, AnkylosingGold Sodium ThiomalateSulfasalazineHematologic TestsSeverity of Illness IndexBiological MarkersThyroiditis, SubacuteBlood ViscosityArthritis, JuvenileRheumatoid FactorAcute-Phase ReactionJointsLeukocyte CountErythrocyte AggregationOsteomyelitisSpondylitisSynovial FluidTreatment OutcomeWrist JointProspective StudiesAuranofinPrednisoloneTakayasu ArteritisArthritis, PsoriaticPredictive Value of TestsCrohn DiseaseTuberculosis, SpinalErythrocyte AgingArthrographyBlood Protein DisordersErysipelothrix InfectionsArthritis, InfectiousColitis, IschemicMethotrexateRheumatoid NoduleTemporal ArteriesHydroxychloroquineAlpha-GlobulinsFollistatin-Related ProteinsAnti-Inflammatory AgentsRetrospective StudiesCentrifugation, Density GradientPenicillamineSpondylarthropathiesFollow-Up StudiesProsthesis-Related InfectionsRetroperitoneal FibrosisSensitivity and SpecificityArthritisInflammationEpidural AbscessHemoglobinsLupus Erythematosus, SystemicTuberculosis, OsteoarticularUltracentrifugationFibrinogenPrognosisDebridementArteritisArthritis, ReactiveRheumatic DiseasesPlatelet CountAortitisImmunoglobulin GSynovitisAnti-Inflammatory Agents, Non-SteroidalDrug Therapy, CombinationDouble-Blind MethodBlood Specimen CollectionColitis, UlcerativeBlood ProteinsBehcet SyndromeReference ValuesTime FactorsAnemiaAntibodies, AntinuclearGlucocorticoidsHaptoglobinsPrednisoneSpinal DiseasesDisease ProgressionErythrocyte DeformabilityHematocritInterleukin-6Anion Exchange Protein 1, ErythrocyteMolecular WeightCase-Control StudiesSjogren's SyndromeMucocutaneous Lymph Node SyndromeStatistics, NonparametricIsoxazolesReceptors, Tumor Necrosis Factor