Antibodies, Antineutrophil CytoplasmicWegener GranulomatosisVasculitisMyeloblastinAnti-Neutrophil Cytoplasmic Antibody-Associated VasculitisPeroxidaseChurg-Strauss SyndromePropylthiouracilVasculitis, Leukocytoclastic, CutaneousMicroscopic PolyangiitisFluorescent Antibody Technique, IndirectAntibodiesAntithyroid AgentsPolyarteritis NodosaAutoantibodiesGlomerulonephritisSerine EndopeptidasesAntibody SpecificityColitis, UlcerativeBiological MarkersEnzyme-Linked Immunosorbent AssayEndocarditis, Subacute BacterialAntibodies, AntinuclearAntibodies, MonoclonalNeutrophilsImmunosuppressive AgentsNose DiseasesArthritis, RheumatoidPrednisoloneSeverity of Illness IndexAntibodies, ViralEosinophilia-Myalgia SyndromeLupus Erythematosus, SystemicImmunoglobulin GAutoantigensFluorescent Antibody TechniqueHemoptysisFixativesProctocolectomy, RestorativeAntirheumatic AgentsMethimazoleCrohn DiseaseAntibodies, BacterialCyclophosphamideGraves DiseaseAutoimmune DiseasesMethylprednisoloneAntibodies, Monoclonal, Murine-DerivedBlood SedimentationLung DiseasesSensitivity and SpecificityRespiratory BurstAntibody FormationRecurrenceAntibodies, NeutralizingTreatment OutcomeRemission InductionFollow-Up StudiesFormaldehydeBiopsyAntibodies, FungalSpondylitis, AnkylosingDrug Therapy, CombinationPredictive Value of TestsCathepsin GInflammatory Bowel DiseasesAntibody AffinityNeutrophil ActivationLysosomal-Associated Membrane Protein 2Antibodies, Anti-IdiotypicPurpura, Schoenlein-HenochDisease ProgressionEpitopesKidneyBinding Sites, AntibodyPlasma ExchangeJointsLactoferrinGlucocorticoidsRetrospective StudiesLeukocyte ElastaseScleritisHIV AntibodiesProspective StudiesCholangitis, SclerosingCase-Control StudiesAntibodies, Monoclonal, HumanizedDrug ContaminationAntibodies, NeoplasmTumor Necrosis Factor-alphaTime FactorsAntibodies, ProtozoanC-Reactive ProteinImmunoglobulin MCohort StudiesAzathioprineMethotrexateRheumatologyImmune SeraArthritis, Juvenile