Platelet TransfusionBlood TransfusionBlood PlateletsPlatelet CountThrombocytopeniaPlateletpheresisErythrocyte TransfusionPlatelet AggregationBlood Component TransfusionAntigens, Human PlateletThrombocytopenia, Neonatal AlloimmuneIsoantibodiesBlood Transfusion, IntrauterineBlood Transfusion, AutologousHemorrhageBlood Grouping and CrossmatchingPlatelet AdhesivenessBlood PreservationExchange Transfusion, Whole BloodPlatelet Membrane GlycoproteinsHematologyBlood Component RemovalBlood DonorsBlood Group IncompatibilityAnemia, AplasticPlatelet Factor 4ThrombopoietinFetofetal TransfusionAnemia, RefractoryHemostasisBlood Loss, SurgicalBleeding TimeThrombastheniaLeukemiaPlatelet Function TestsHLA AntigensPlatelet Glycoprotein GPIIb-IIIa ComplexPlatelet Activating FactorThrombopoiesisInterleukin-11LeukapheresisMegakaryocytesPancytopeniaHematopoietic Stem Cell TransplantationABO Blood-Group SystemPlatelet Glycoprotein GPIb-IX ComplexThrombelastographyNeonatologyTreatment OutcomeTime FactorsPurpura, Thrombocytopenic, IdiopathicGranulocyte Colony-Stimulating FactorRetrospective StudiesThrombinHistocompatibility TestingBone Marrow TransplantationSplenectomyLeukocyte TransfusionTransplantation, AutologousBlood BanksLeukemia, MyeloidAdenosine DiphosphateIsoantigensProspective StudiesAcute DiseaseCyclophosphamideMyelodysplastic SyndromesDisseminated Intravascular CoagulationRecombinant ProteinsImmunizationFibrinogenBone Marrow DiseasesInfant, NewbornLeukocyte CountAntineoplastic Combined Chemotherapy ProtocolsTransplantation, HomologousAnemiaHemoglobinsLymphoma, Non-HodgkinAntigens, CD34P-SelectinAnemia, NeonatalLeukemia, Myeloid, AcuteEtoposideErythroblastosis, FetalAntibodiesThrombosisHematopoietic Stem Cell MobilizationNeutropeniaGraft SurvivalLeukocytesPostoperative HemorrhageHematopoiesisvon Willebrand FactorNeoplasmsHepatic Veno-Occlusive Disease