AspirinAnti-Inflammatory Agents, Non-SteroidalIbuprofenDiclofenacCyclooxygenase 2 InhibitorsNaproxenCyclooxygenase InhibitorsTolmetinPiroxicamFlurbiprofenEtodolacAcetaminophenKetoprofenIndomethacinProstaglandin-Endoperoxide SynthasesPyrazolesSulindacKetorolacCyclooxygenase 2SulfonamidesCyclooxygenase 1SalicylatesFenoprofenGastrointestinal DiseasesAnti-Inflammatory AgentsLactonesSulfonesThiazinesAnalgesics, Non-NarcoticPhenylbutazoneStomach UlcerNitrobenzenesDiflunisalSodium SalicylateProstaglandinsPlatelet Aggregation InhibitorsArthritisDinoprostoneDrug Therapy, CombinationDose-Response Relationship, DrugIsoenzymesGastrointestinal HemorrhageDouble-Blind MethodPainTennesseeAnalgesicsOsteoarthritisRisk FactorsInflammationAnti-Ulcer AgentsAntirheumatic AgentsDrug InteractionsCase-Control StudiesSpondylitis, AnkylosingThromboxane B2Duodenal UlcerArthritis, RheumatoidPain, PostoperativeMembrane ProteinsColonic NeoplasmsCohort StudiesPain MeasurementProspective StudiesTreatment OutcomeArachidonic AcidRiskTiclopidineMorphinePlatelet AggregationAnalgesics, OpioidEdemaTime FactorsLipoxinsIncidencePlatelet Function TestsCarrageenanPeptic Ulcer HemorrhageLogistic ModelsGastric MucosaOsteoarthritis, KneeDrug HypersensitivityMethotrexatePeptic UlcerRats, Sprague-DawleyBlood PlateletsAsthma, Aspirin-InducedRetrospective StudiesAnticoagulantsAnticarcinogenic AgentsProstaglandin AntagonistsFenamatesSeverity of Illness IndexWarfarinFibrinolytic AgentsMefenamic AcidTablets, Enteric-CoatedChemopreventionGrowth Differentiation Factor 15ThromboxanesHemorrhage