Platelet Function TestsPlatelet AggregationBlood Plateletsvon Willebrand FactorPlatelet Aggregation InhibitorsAspirinTiclopidinevon Willebrand DiseasesPlatelet AdhesivenessPlatelet CountBleeding TimePlatelet Membrane GlycoproteinsLiver Function TestsPlatelet ActivationRespiratory Function TestsPlatelet Glycoprotein GPIb-IX ComplexBlood Platelet DisordersRistocetinAdenosine DiphosphateHemostasisPlatelet Glycoprotein GPIIb-IIIa ComplexThrombinPlatelet Factor 4beta-ThromboglobulinThromboxane B2ThrombosisPlatelet TransfusionFibrinogenThyroid Function TestsBlood CoagulationP-SelectinFactor VIIIPlatelet Factor 3Blood Coagulation Factorsvon Willebrand Disease, Type 2CollagenReceptors, Purinergic P2Y12Platelet Activating FactorThrombelastographyBlood Coagulation TestsMegakaryocytesThromboxane A2ThrombocytopeniaHemorrhagic Disordersvon Willebrand Disease, Type 1Crotalid VenomsPancreatic Function TestsPlatelet Membrane Glycoprotein IIbAntigens, Human PlateletBlood Coagulation DisordersThrombopoiesisSerotoninPurinergic P2Y Receptor AntagonistsThromboxanesHemorrhageClot Retraction