Vasculitis, Leukocytoclastic, CutaneousVasculitisSkin Diseases, VascularAntibodies, Antineutrophil CytoplasmicAnti-Neutrophil Cytoplasmic Antibody-Associated VasculitisLivedo ReticularisMyeloblastinNeutrophilsWegener GranulomatosisPurpura, Schoenlein-HenochEthylestrenolSystemic VasculitisPurpuraRetinal VasculitisCryoglobulinemiaPolyarteritis NodosaSkin DiseasesChurg-Strauss SyndromeVasculitis, Central Nervous SystemMicroscopic PolyangiitisStanozololAntibodiesPeroxidaseSkinAntigen-Antibody ComplexAntibody SpecificityGlomerulonephritisComplement C3AutoantibodiesBiopsyAntibodies, MonoclonalFluorescent Antibody Technique, IndirectSerine EndopeptidasesPropylthiouracilAntibodies, ViralArteritisEnzyme-Linked Immunosorbent AssayRheumatoid VasculitisAntibodies, BacterialAntibodies, AntinuclearAntithyroid AgentsNeutrophil InfiltrationFluorescent Antibody TechniqueImmunoglobulin GImmunosuppressive AgentsAutoimmune DiseasesAutoantigensCathepsin GPrednisoloneEndocarditis, Subacute BacterialAntibody FormationColitis, UlcerativeAntibodies, NeutralizingBiological MarkersCyclophosphamideLactoferrinPlasma ExchangeMethylprednisoloneAntibody AffinityAntibodies, Monoclonal, Murine-DerivedMucocutaneous Lymph Node SyndromeEpitopesAntibodies, FungalNose DiseasesN-Formylmethionine Leucyl-PhenylalanineLung DiseasesAntibodies, Anti-IdiotypicLupus Erythematosus, SystemicLeukocyte ElastaseBehcet SyndromeHemoptysisNeutrophil ActivationCryoglobulinsScleritisLysosomal-Associated Membrane Protein 2Immunoglobulin MChemotaxis, LeukocyteMethimazoleBinding Sites, AntibodyImmunoglobulins, IntravenousGiant Cell ArteritisAzathioprineCells, CulturedImmunoglobulin ARecurrenceAnti-Glomerular Basement Membrane DiseaseImmunologic FactorsGraves DiseaseNecrosisLevamisoleSensitivity and SpecificityHIV AntibodiesHemorrhageTakayasu ArteritisReceptors, IgG