Purpura, ThrombocytopenicPurpura, Thrombotic ThrombocytopenicPurpura, Thrombocytopenic, IdiopathicPlatelet CountPlasma ExchangePurpuraSplenectomyPurpura, Schoenlein-HenochADAM ProteinsThrombocytopeniaBlood PlateletsHemolytic-Uremic SyndromeDanazolImmunoglobulins, IntravenousRho(D) Immune GlobulinEcchymosisPregnancy Complications, HematologicPlasmapheresisvon Willebrand FactorPlatelet TransfusionAutoantibodiesAntigens, Human PlateletOklahomaThrombotic MicroangiopathiesThrombopoietinMetalloendopeptidasesPurpura FulminansAnemia, Hemolytic, AutoimmuneAutoimmune DiseasesAnemia, HemolyticAntibodies, Monoclonal, Murine-DerivedMegakaryocytesImmunoglobulin GThrombopoiesisImmunologic FactorsReceptors, ThrombopoietinPlatelet Membrane GlycoproteinsAdrenal Cortex HormonesChronic DiseaseRecurrenceIsoantibodiesHemoglobinuriaPrednisolonePlasmaHematologyPhenazopyridineTuberculosis, SplenicHemorrhageFatal OutcomePurpura, HyperglobulinemicGingival HemorrhagePlatelet Glycoprotein GPIb-IX ComplexAntibodies, MonoclonalTreatment OutcomeDisseminated Intravascular CoagulationEpistaxisMethylprednisoloneAcute DiseasePlatelet AggregationPancytopeniagamma-GlobulinsRemission InductionThrombocytosisLupus Erythematosus, SystemicPrednisonePlatelet Glycoprotein GPIIb-IIIa ComplexSteroidsHematologic DiseasesReceptors, FcSplenic DiseasesAntigen-Antibody ComplexSpleenImmunosuppressive AgentsHydrazinesHELLP SyndromeAntibody SpecificityBlood TransfusionImmune System DiseasesBleeding TimeRetrospective StudiesStaphylococcal Protein AAntigens, CD20Antibodies, AnticardiolipinDipyridamoleFollow-Up StudiesBlood Cell CountAntiphospholipid SyndromePlatelet Aggregation InhibitorsQuinidineImmunization, PassiveTime FactorsTiclopidineAnemia, AplasticPregnancyImmunoglobulinsImmunoglobulin Fab FragmentsImmunoglobulin MBenzoatesRegistriesTreatment Failure