Hepatitis C, ChronicAlanine TransaminaseLiver CirrhosisBiopsyLiverHepatitis B, ChronicHepatitis B e AntigensSeverity of Illness IndexHepacivirusFatty LiverInterferon-alphaSpondylitis, AnkylosingHepatitis CCrohn DiseaseAntiviral AgentsLupus Erythematosus, SystemicColitis, UlcerativePouchitisBlood SedimentationMesalamineLupus NephritisAntirheumatic AgentsGastrointestinal AgentsMitotic IndexTreatment OutcomeDextran SulfatePhosphorothioate OligonucleotidesBody Mass IndexColitisSpondylarthritisEnemaArthritis, RheumatoidRemission InductionBiological MarkersRheumatologyAnti-Inflammatory AgentsProspective StudiesDouble-Blind MethodReproducibility of ResultsAntibodies, AntinuclearAminosalicylic AcidsAnti-Inflammatory Agents, Non-SteroidalFollow-Up StudiesC-Reactive ProteinPrednisoloneLupus Vasculitis, Central Nervous SystemColonAntibodies, MonoclonalInflammatory Bowel DiseasesIntestinal FistulaDisability EvaluationImmunosuppressive AgentsJointsPilot ProjectsCase-Control StudiesQuestionnairesAntibodies, Monoclonal, HumanizedActivities of Daily LivingPredictive Value of TestsCohort StudiesCross-Sectional StudiesQuality of LifeTumor Necrosis Factor-alphaAzathioprineSulfasalazineTime FactorsObserver VariationPrognosisDisease ProgressionHealth Status IndicatorsDrug Therapy, CombinationRisk FactorsRetrospective StudiesStatistics, NonparametricBudesonideIntestinal MucosaSpineGlucocorticoidsSjogren's SyndromeRecurrenceOrosomucoidPeroxidaseHealth StatusLongitudinal StudiesPrednisoneAutoantibodiesB-Cell Activating FactorPain MeasurementDrug Administration ScheduleHLA-B27 AntigenChronic DiseaseLeukapheresisSensitivity and SpecificityAcute DiseaseColonoscopyAdministration, OralReceptors, Tumor Necrosis FactorImmunologic FactorsROC CurveRegression Analysis