Purpura, Thrombocytopenic, IdiopathicPurpura, Thrombotic ThrombocytopenicPurpura, ThrombocytopenicPurpuraPurpura, Schoenlein-HenochAutoimmune DiseasesPlatelet CountPlasma ExchangeSplenectomyThrombocytopeniaADAM ProteinsAutoantibodiesPurpura FulminansBlood PlateletsPlatelet TransfusionHemolytic-Uremic SyndromeImmunoglobulins, IntravenousPlasmapheresisDanazolPregnancy Complications, HematologicRho(D) Immune GlobulinAntigens, Human PlateletEcchymosisThrombopoietinvon Willebrand FactorLupus Erythematosus, SystemicPurpura, HyperglobulinemicOklahomaMegakaryocytesImmunoglobulin GAutoimmunityAnemia, Hemolytic, AutoimmuneAutoantigensThrombopoiesisAntibodies, Monoclonal, Murine-DerivedMetalloendopeptidasesReceptors, ThrombopoietinThrombotic MicroangiopathiesImmunologic FactorsAnemia, HemolyticAntibodies, AntinuclearPlatelet Membrane GlycoproteinsAntibodies, MonoclonalChronic DiseaseSpleenAdrenal Cortex HormonesPrednisoloneEncephalomyelitis, Autoimmune, ExperimentalHemorrhageRecurrenceImmunosuppressive AgentsDisseminated Intravascular CoagulationT-LymphocytesSjogren's SyndromeIsoantibodiesHematologyAntigen-Antibody ComplexPlasmaFatal OutcomeMethylprednisoloneB-LymphocytesThrombocytosisTreatment OutcomeHemoglobinuriaAcute DiseasePhenazopyridineAutoimmune Diseases of the Nervous SystemNephritisImmune System DiseasesLymphocyte ActivationBlood TransfusionPlatelet Glycoprotein GPIb-IX ComplexTuberculosis, SplenicAntibody SpecificityPlatelet AggregationMice, Inbred C57BLgamma-GlobulinsMice, Inbred MRL lprPrednisoneFlow CytometryGingival HemorrhageVasculitis, Leukocytoclastic, CutaneousEpistaxisReceptors, FcDisease Models, AnimalRemission InductionAntigens, CD20SteroidsBleeding TimeArthritis, RheumatoidPancytopeniaDiabetes Mellitus, Type 1HELLP SyndromeHematologic DiseasesRetrospective StudiesPlatelet Glycoprotein GPIIb-IIIa ComplexT-Lymphocytes, RegulatoryMultiple SclerosisEnzyme-Linked Immunosorbent AssayLeg Dermatoses