Platelet CountBlood PlateletsPlatelet AggregationThrombocytopeniaPlatelet AdhesivenessPlatelet TransfusionSubstance PPlatelet Membrane GlycoproteinsThrombocytosisBlood Cell CountPlatelet Factor 4Leukocyte CountPurpura, Thrombocytopenic, IdiopathicPlatelet Function TestsMegakaryocytesPlatelet Glycoprotein GPIIb-IIIa ComplexPlatelet Glycoprotein GPIb-IX ComplexBleeding TimePlatelet Activating FactorThrombopoietinPurpura, ThrombocytopenicThrombinAntigens, Human PlateletFibrinogenThrombopoiesisAdenosine DiphosphateSplenectomyThrombosisSubstance-Related DisordersHemostasisP-SelectinCD4 Lymphocyte CountBlood CoagulationErythrocyte CountDisseminated Intravascular CoagulationTime Factorsvon Willebrand FactorThrombocythemia, EssentialHemorrhageHELLP SyndromeBlood Coagulation DisordersProthrombin TimeReceptors, ThrombopoietinPlatelet Membrane Glycoprotein IIbHematologic TestsCell CountHematocritHypersplenismBlood Coagulation TestsAspirinTreatment OutcomeThromboxane A2SerotoninRetrospective StudiesPlateletpheresisPartial Thromboplastin TimeCollagenHeparinPlatelet Factor 3Prospective StudiesHematologyBlood Coagulation FactorsPlatelet-Rich PlasmaPregnancy Complications, HematologicPlatelet Storage Pool DeficiencyReceptors, Neurokinin-1Dose-Response Relationship, DrugSubstance Abuse Treatment CentersThrombelastographyBone MarrowThrombocytopenia, Neonatal AlloimmuneRabbitsRistocetinRisk FactorsReticulocyte CountBlood PreservationHematopoiesisRecombinant ProteinsLeukocytesEgg WhiteHemorrhagic DisordersHemoglobinsImmunoglobulins, IntravenousAntibodies, MonoclonalBlood TransfusionReceptors, Purinergic P2Y12European Continental Ancestry GroupFlow CytometryPrognosisLymphocyte CountBlood ProteinsAnticoagulantsBiological MarkersLiver CirrhosisPipecolic AcidsPlatelet ActivationLeukocytosisPrimary MyelofibrosisThrombastheniaBernard-Soulier Syndrome