Systemic VasculitisVasculitisPolyarteritis NodosaAntibodies, Antineutrophil CytoplasmicAsthmaChurg-Strauss SyndromeWegener GranulomatosisRetinal VasculitisMyeloblastinAnti-Neutrophil Cytoplasmic Antibody-Associated VasculitisArteritisMucocutaneous Lymph Node SyndromeVasculitis, Leukocytoclastic, CutaneousPurpura, Schoenlein-HenochMicroscopic PolyangiitisCogan SyndromeCryoglobulinemiaVasculitis, Central Nervous SystemAutoantibodiesPeroxidaseBehcet SyndromeSerine EndopeptidasesImmunoglobulins, IntravenousOtorhinolaryngologic DiseasesAutoimmune DiseasesGlomerulonephritisImmunosuppressive AgentsPrednisoloneAutoantigensGiant Cell ArteritisNeutrophilsAnti-Asthmatic AgentsCollagen DiseasesSkin Diseases, VascularRheumatoid VasculitisLeukemia, Myelomonocytic, ChronicMethylprednisoloneEnzyme-Linked Immunosorbent AssayCyclophosphamideImmunoglobulin GGlucocorticoidsLupus Erythematosus, SystemicRetrospective StudiesSeverity of Illness IndexRespiratory BurstArthritis, RheumatoidTreatment OutcomeAsthma, Exercise-InducedAdrenal Cortex HormonesFluorescent Antibody Technique, IndirectAntibodies, MonoclonalKidney DiseasesCase-Control StudiesAdministration, InhalationDrug Therapy, CombinationBiological MarkersPeak Expiratory Flow RateAsthma, OccupationalAntibody SpecificityFollow-Up StudiesForced Expiratory VolumeBronchial HyperreactivityBronchodilator AgentsRespiratory SoundsTumor Necrosis Factor-alphaEndothelium, VascularAllergensGenetic Predisposition to DiseasePolymorphism, GeneticKidneyCytoplasmHypersensitivityCryoglobulinsProspective StudiesHypersensitivity, ImmediatePurpuraPrognosis