Platelet CountBlood Cell CountBlood PlateletsLeukocyte CountPlatelet AggregationThrombocytopeniaErythrocyte CountPlatelet AdhesivenessCell CountCD4 Lymphocyte CountPlatelet TransfusionBlood CellsThrombocytosisPlatelet Membrane GlycoproteinsPlatelet Factor 4Hematologic TestsPurpura, Thrombocytopenic, IdiopathicLeukocytosisHematocritPlatelet Function TestsErythrocytesMegakaryocytesFibrinogenPlatelet Glycoprotein GPIIb-IIIa ComplexTime FactorsPlatelet Glycoprotein GPIb-IX ComplexBleeding TimeHemoglobinsThrombopoietinPlatelet Activating FactorLymphocyte CountSplenectomyPurpura, ThrombocytopenicLeukocytesHIV InfectionsRetrospective StudiesBiological MarkersTreatment OutcomeProspective StudiesThrombinAntigens, Human PlateletHematologyErythrocyte IndicesReticulocyte CountHemostasisBone MarrowThrombopoiesisBlood CoagulationC-Reactive ProteinPrognosisHypersplenismAdenosine DiphosphateRisk FactorsThrombosisProthrombin TimeHematopoiesisCohort StudiesPredictive Value of TestsP-SelectinHemorrhageNeutrophilsLeukopeniaViral LoadDisseminated Intravascular Coagulationvon Willebrand FactorFlow CytometryColony Count, MicrobialAcute DiseaseFollow-Up StudiesBlood SedimentationThrombocythemia, EssentialBlood PreservationGranulocyte Colony-Stimulating FactorBlood Coagulation DisordersDose-Response Relationship, DrugHELLP SyndromeAnti-HIV AgentsReceptors, ThrombopoietinRecombinant ProteinsBlood Chemical AnalysisPlatelet Membrane Glycoprotein IIbInfant, NewbornSplenomegalyBlood Coagulation TestsLeukemoid ReactionHematologic DiseasesSpleenPrimary MyelofibrosisSurvival AnalysisErythrocyte TransfusionHematopoietic Stem CellsDrug Therapy, CombinationAspirinPrecursor Cell Lymphoblastic Leukemia-LymphomaBlood TransfusionPlateletpheresisAnemiaLeukemia, Myeloid, AcuteSeverity of Illness IndexPartial Thromboplastin Time