AspirinPlatelet Aggregation InhibitorsAnti-Inflammatory Agents, Non-SteroidalSalicylatesCyclooxygenase InhibitorsPlatelet AggregationProstanoic AcidsThromboxane B2TiclopidineThromboxanesBlood PlateletsSodium SalicylatePlatelet Function TestsDipyroneFibrinolytic AgentsSalicylic AcidAcetaminophenProstaglandinsThromboxane A2Prostaglandin-Endoperoxide SynthasesAnticoagulantsGastrointestinal HemorrhageCyclooxygenase 1IndomethacinDipyridamoleBleeding TimeDrug HypersensitivityDose-Response Relationship, DrugProstaglandins EPiroxicamThrombosisAntipyreticsDrug Interactions6-Ketoprostaglandin F1 alphaGentisatesEpoprostenolDinoprostoneIbuprofenStomach DiseasesTime FactorsArachidonic AcidDrug Therapy, CombinationThromboembolismGastric MucosaDouble-Blind MethodPhenacetinWarfarinArachidonic AcidsCyclooxygenase 2 InhibitorsTreatment OutcomeCyclooxygenase 2HemorrhageStomach UlcerCerebrovascular DisordersPlatelet AdhesivenessRandom AllocationPlatelet ActivationAcetic AcidAnalgesicsDiclofenacAdenosine DiphosphateIschemic Attack, TransientAnti-Inflammatory AgentsGastrointestinal DiseasesDrug ResistancePlacebosProspective StudiesPeptic UlcerRisk FactorsMyocardial InfarctionNanofibersAnalgesics, Non-NarcoticPyrazolesStrokeCross-Over StudiesAbsorbable ImplantsSulfonamidesHeparinCardiovascular DiseasesClinical Trials as TopicRabbitsIndicators and ReagentsFollow-Up StudiesCanadaPainCollagenNitric OxideSerotoninAsthma, Aspirin-InducedThrombinTablets, Enteric-Coated