C-Reactive ProteinBlood SedimentationBiological MarkersArthritis, RheumatoidAcute-Phase ReactionSerum Amyloid A ProteinTuberculosis, MiliarySpondylitis, AnkylosingAntirheumatic AgentsNephelometry and TurbidimetryGold Sodium ThiomalateLeukocyte CountPolyarteritis NodosaMendelian Randomization AnalysisBacterial InfectionsRheumatoid FactorOrosomucoidProspective StudiesPolymyalgia RheumaticaArthritis, PsoriaticAcute DiseaseGenetic MarkersStatistics, NonparametricComplement C4Meningitis, ViralSeverity of Illness IndexCalcitoninSynovitisLatex Fixation TestsFeverCrohn DiseaseInfant, Premature, DiseasesSynovial FluidOsteoarthritisAcute-Phase ProteinsArthritisSepsisInterleukin-6Case-Control StudiesInfant, NewbornPrognosisEnzyme-Linked Immunosorbent AssayRisk FactorsPancreatitisTime FactorsTreatment OutcomeAngina, UnstableInflammationPrednisoloneCross-Sectional StudiesPredictive Value of TestsFollow-Up StudiesDouble-Blind MethodInflammation MediatorsFalse Positive ReactionsAnti-Inflammatory AgentsCardiovascular DiseasesTumor Necrosis Factor-alphaImmunoglobulin GAntibodies, MonoclonalChi-Square DistributionAnalysis of VarianceROC CurveAutoantibodiesCoronary DiseaseGlucocorticoidsTumor Markers, BiologicalSensitivity and SpecificityLipidsBody Mass IndexDrug Therapy, CombinationPilot ProjectsCohort StudiesTroponin TDisease ProgressionMicrosatellite RepeatsChromosome MappingRetrospective StudiesMolecular WeightGenetic LinkageImmunohistochemistryFiducial MarkersCell DifferentiationGenotypePhenotype