Platelet AggregationBlood PlateletsPlatelet Aggregation InhibitorsPlatelet AdhesivenessPlatelet CountAdenosine DiphosphatePlatelet Membrane GlycoproteinsThrombinPlatelet ActivationPlatelet Glycoprotein GPIIb-IIIa ComplexPlatelet Function TestsFibrinogenSerotoninPlatelet Factor 4Bleeding TimeThromboxane A2Cell AggregationBlood Platelet DisordersPlatelet Glycoprotein GPIb-IX ComplexAspirinCollagenPlatelet Activating FactorPlatelet TransfusionThromboxane B2Thrombosisbeta-ThromboglobulinMegakaryocytesvon Willebrand FactorThrombocytopeniaBlood CoagulationReceptors, Purinergic P2Y12P-SelectinThromboxanesRistocetinHemostasisEpoprostenolApyraseRabbitsCrotalid VenomsEpinephrineAdenine NucleotidesReceptors, ThromboxaneProstanoic AcidsBlood Cell CountArachidonic AcidCytoplasmic Granules