AspirinPlatelet Aggregation InhibitorsAnti-Inflammatory Agents, Non-SteroidalTiclopidineThromboxane B2Cyclooxygenase InhibitorsPlatelet AggregationSalicylatesPlatelet Function TestsDrug Therapy, CombinationBlood PlateletsSodium SalicylateTropaeolaceaeFibrinolytic AgentsHemorrhageAsthma, Aspirin-InducedStereoisomerismAnticoagulantsWarfarinTablets, Enteric-CoatedCyclooxygenase 1Dose-Response Relationship, DrugBleeding TimeGastrointestinal HemorrhageProstaglandin-Endoperoxide SynthasesPlatelet ActivationThromboxanesIbuprofenThromboxane A2Magnetic Resonance SpectroscopyThrombosisCyclooxygenase 2 InhibitorsDouble-Blind MethodRisk FactorsDipyridamoleNucleic Acid ConformationTime FactorsMolecular StructureTreatment OutcomeLipoxinsAcetaminophenProspective StudiesModels, MolecularMolecular ConformationDrug ResistanceIndomethacinMyocardial InfarctionSulfinpyrazoneGastric MucosaCyclooxygenase 2Reye SyndromeStrokeAntibodies, MonoclonalStomach UlcerProstaglandinsNaproxenHydrogen Bonding