AspirinPlatelet Aggregation InhibitorsAnti-Inflammatory Agents, Non-SteroidalTiclopidineThromboxane B2Cyclooxygenase InhibitorsPlatelet AggregationSalicylatesPlatelet Function TestsDrug Therapy, CombinationBlood PlateletsSodium SalicylateFibrinolytic AgentsHemorrhageAsthma, Aspirin-InducedAnticoagulantsWarfarinTablets, Enteric-CoatedCyclooxygenase 1Gastrointestinal HemorrhageBleeding TimeProstaglandin-Endoperoxide SynthasesPlatelet ActivationThromboxanesDose-Response Relationship, DrugIbuprofenThromboxane A2ThrombosisCyclooxygenase 2 InhibitorsDouble-Blind MethodDipyridamoleTime FactorsRisk FactorsLipoxinsAcetaminophenDrug ResistanceIndomethacinMyocardial InfarctionTreatment OutcomeSulfinpyrazoneGastric MucosaCyclooxygenase 2StrokeProspective StudiesReye SyndromeStomach UlcerProstaglandinsNaproxen