ThrombocytopeniaPlatelet CountBlood PlateletsPlatelet AggregationPurpura, Thrombocytopenic, IdiopathicPlatelet TransfusionPlatelet AdhesivenessPlatelet Factor 4ThrombocytosisPlatelet Membrane GlycoproteinsMegakaryocytesThrombocytopenia, Neonatal AlloimmuneBlood Cell CountThrombopoietinPurpura, ThrombocytopenicAntigens, Human PlateletLeukocyte CountPlatelet Function TestsPlatelet Glycoprotein GPIIb-IIIa ComplexThrombopoiesisSplenectomyPlatelet Glycoprotein GPIb-IX ComplexBleeding TimeReceptors, ThrombopoietinDisseminated Intravascular CoagulationPlatelet Activating FactorHeparinHemorrhageThrombosisThrombinFibrinogenPregnancy Complications, HematologicTreatment OutcomeAdenosine DiphosphateHemostasisPipecolic AcidsHypersplenismBlood CoagulationImmunoglobulins, Intravenousvon Willebrand FactorLeukopeniaErythrocyte CountP-SelectinBlood Coagulation DisordersHELLP SyndromeBlood Coagulation TestsPlatelet Membrane Glycoprotein IIbAnticoagulantsTime FactorsHemorrhagic DisordersCD4 Lymphocyte CountNeutropeniaHematologic TestsBone MarrowThrombocythemia, EssentialDrug Administration ScheduleRetrospective StudiesHematologyProthrombin TimePurpura, Thrombotic ThrombocytopenicAntineoplastic Combined Chemotherapy ProtocolsBlood Platelet DisordersHematocritPartial Thromboplastin TimeSplenomegalyHematologic DiseasesAspirinPhlebovirusCell CountPlatelet ActivationDose-Response Relationship, DrugAntibodies, MonoclonalRecombinant ProteinsHematopoiesisPlateletpheresisWiskott-Aldrich SyndromeBernard-Soulier SyndromeBlood Coagulation FactorsIsoantibodiesProspective StudiesInfusions, IntravenousDanazolInterleukin-11AutoantibodiesBlood TransfusionImmunoglobulin GRistocetinThrombelastographyPrimary MyelofibrosisThromboxane A2Drug EvaluationSerotoninPancytopeniaHydrazinesBunyaviridae InfectionsReticulocyte CountCollagenAntibodiesGranulocyte Colony-Stimulating FactorPrognosis