Purpura, Thrombocytopenic, IdiopathicPurpura, ThrombocytopenicSplenectomyPurpura, Thrombotic ThrombocytopenicPlatelet CountDanazolImmunoglobulins, IntravenousEcchymosisThrombocytopeniaBlood PlateletsPlatelet TransfusionPregnancy Complications, HematologicRho(D) Immune GlobulinAntigens, Human PlateletThrombopoietinAutoantibodiesPlasma ExchangeMegakaryocytesAnemia, Hemolytic, Autoimmunegamma-GlobulinsADAM ProteinsPrednisoloneImmunologic FactorsAutoimmune DiseasesSplenic DiseasesImmunoglobulin GChronic DiseasePlatelet Membrane GlycoproteinsAdrenal Cortex HormonesHemorrhageMethylprednisoloneAntibodies, Monoclonal, Murine-DerivedPlatelet Glycoprotein GPIb-IX ComplexAntigens, CD20Hematologic DiseasesHemolytic-Uremic SyndromeTreatment OutcomeSteroidsSpleenIdiopathic Pulmonary FibrosisRecurrencePlasmapheresisAntibodies, MonoclonalAntibody Specificityvon Willebrand FactorRetrospective StudiesAcute DiseaseImmunoglobulinsImmunosuppressive AgentsLaparoscopyOklahomaImmunoglobulin MThrombotic MicroangiopathiesTime FactorsThrombopoiesisReceptors, ThrombopoietinPrognosisHelicobacter pyloriScoliosisMetalloendopeptidasesArthritis, JuvenileAnemia, Hemolytic