AspirinPlatelet Aggregation InhibitorsHeparin, Low-Molecular-WeightAnti-Inflammatory Agents, Non-SteroidalHeparin AntagonistsHeparin LyaseAnticoagulantsTiclopidineThromboxane B2Heparin Cofactor IIPlatelet AggregationCyclooxygenase InhibitorsFibrinolytic AgentsSalicylatesPlatelet Function TestsHemorrhageDrug Therapy, CombinationAntithrombin IIIBlood PlateletsAntithrombinsThrombosisSodium SalicylateWarfarinDose-Response Relationship, DrugBleeding TimePlatelet ActivationEnoxaparinAsthma, Aspirin-InducedPartial Thromboplastin TimeTablets, Enteric-CoatedCyclooxygenase 1DalteparinGastrointestinal HemorrhageDouble-Blind MethodThromboxanesProstaglandin-Endoperoxide SynthasesBlood CoagulationGlycosaminoglycansThromboxane A2IbuprofenWhole Blood Coagulation TimeMyocardial InfarctionThrombinThromboembolismTreatment OutcomeTime FactorsCyclooxygenase 2 InhibitorsDipyridamoleHirudinsDermatan SulfateFactor XaRisk FactorsPlatelet Factor 4Prospective StudiesLipoxinsDrug ResistanceAcetaminophenIndomethacinProtaminesHirudin TherapyStrokeGastric MucosaSulfinpyrazoneStomach UlcerCyclooxygenase 2Reye SyndromePlatelet Glycoprotein GPIIb-IIIa ComplexProstaglandinsDrug InteractionsBlood Coagulation TestsNaproxen