AspirinPlatelet Aggregation InhibitorsAnti-Inflammatory Agents, Non-SteroidalSalicylatesCyclooxygenase InhibitorsPlatelet AggregationProstanoic AcidsTiclopidineThromboxane B2ThromboxanesBlood PlateletsPlatelet Function TestsSodium SalicylateDipyroneFibrinolytic AgentsSalicylic AcidPrimary PreventionAcetaminophenProstaglandinsThromboxane A2AnticoagulantsProstaglandin-Endoperoxide SynthasesGastrointestinal HemorrhageDipyridamoleCyclooxygenase 1IndomethacinBleeding TimeDose-Response Relationship, DrugDrug HypersensitivityThrombosisProstaglandins EPiroxicamDouble-Blind MethodTime FactorsDrug InteractionsAntipyreticsDrug Therapy, Combination6-Ketoprostaglandin F1 alphaGentisatesRisk FactorsEpoprostenolWarfarinDinoprostoneThromboembolismIbuprofenTreatment OutcomeStomach DiseasesGastric MucosaArachidonic AcidCyclooxygenase 2 InhibitorsArachidonic AcidsPhenacetinHemorrhageSecondary PreventionCyclooxygenase 2Cerebrovascular DisordersRandom AllocationStomach UlcerProspective StudiesPlatelet AdhesivenessIschemic Attack, TransientPlatelet ActivationAcetic AcidAnti-Inflammatory AgentsPlacebosAnalgesicsDiclofenacCenters for Disease Control and Prevention (U.S.)Adenosine DiphosphateGastrointestinal DiseasesDrug ResistanceStrokeClinical Trials as TopicPeptic UlcerMyocardial InfarctionCardiovascular DiseasesPyrazolesNanofibersAnalgesics, Non-NarcoticFollow-Up StudiesCross-Over StudiesSulfonamidesAbsorbable ImplantsHeparinAccident PreventionRabbitsCanadaIndicators and ReagentsUnited StatesRetrospective StudiesNitric OxidePainCollagenDisease Models, AnimalSerotoninIncidenceThrombinAsthma, Aspirin-InducedRandomized Controlled Trials as TopicTablets, Enteric-Coated