AspirinPlatelet Aggregation InhibitorsSalicylatesAnti-Inflammatory Agents, Non-SteroidalCyclooxygenase InhibitorsProstanoic AcidsPlatelet AggregationThromboxanesDipyroneThromboxane B2Blood PlateletsTiclopidineSalicylic AcidSodium SalicylateProstaglandinsFibrinolytic AgentsAcetaminophenPlatelet Function TestsThromboxane A2Prostaglandin-Endoperoxide SynthasesAntipyreticsIndomethacinDipyridamoleAnticoagulantsPiroxicamGastrointestinal HemorrhageProstaglandins EBleeding TimeCyclooxygenase 1Drug HypersensitivityStomach Diseases6-Ketoprostaglandin F1 alphaDrug InteractionsDose-Response Relationship, DrugEpoprostenolThrombosisPhenacetinDinoprostoneArachidonic AcidsArachidonic AcidThromboembolismGastric MucosaIbuprofenAcetic AcidRandom AllocationTime FactorsDouble-Blind MethodCyclooxygenase 2 InhibitorsAnalgesicsPlatelet AdhesivenessCerebrovascular DisordersDiclofenacAnti-Inflammatory AgentsCyclooxygenase 2WarfarinIschemic Attack, TransientStomach UlcerAdenosine DiphosphatePlacebosTreatment OutcomeGentisatesGastrointestinal DiseasesDrug Therapy, CombinationPeptic UlcerHemorrhageAnalgesics, Non-NarcoticPlatelet ActivationPyrazolesDrug ResistanceProspective StudiesCross-Over StudiesIndicators and ReagentsClinical Trials as TopicSulfonamidesRabbitsMyocardial InfarctionRisk FactorsCanadaPainHeparinCardiovascular DiseasesStrokeSerotoninNanofibersNitric OxideCollagenAbsorbable ImplantsThrombinHydrogen-Ion ConcentrationFollow-Up StudiesChromatography, High Pressure LiquidIsoenzymesRetrospective StudiesDisease Models, AnimalCells, CulturedKineticsEnzyme Inhibitors