AspirinThiophenesMorpholinesAnticoagulantsFactor Xabeta-AlanineVenous ThromboembolismEnoxaparinWarfarinHemorrhagePyridonesAdministration, OralBenzimidazolesEmbolismAtrial FibrillationPlatelet Aggregation InhibitorsIntention to Treat AnalysisVitamin KInternational Normalized RatioAcenocoumarolAnti-Inflammatory Agents, Non-SteroidalHepatic InsufficiencyPharmacovigilancePulmonary EmbolismIntracranial HemorrhagesVenous ThrombosisDouble-Blind MethodThromboembolismPyrazolesStrokeArthroplasty, Replacement, KneeThrombosisArthroplasty, Replacement, HipNaproxenBlood CoagulationFibrinolytic AgentsHemostatic TechniquesDose-Response Relationship, DrugAcute Coronary SyndromeThrombin TimeSecondary PreventionTreatment OutcomeProthrombin TimeBleeding TimeBlood Coagulation TestsWithholding TreatmentTiclopidineThrombelastographyDrug MonitoringThromboxane B2Partial Thromboplastin TimeClinical Trials, Phase III as TopicCyclooxygenase InhibitorsPlatelet AggregationSalicylatesRandomized Controlled Trials as TopicSafetyAntithrombin IIIAntithrombinsDrug InteractionsProthrombinPlatelet Function TestsLLC-PK1 CellsCost-Benefit AnalysisClinical Trials, Phase I as TopicPyridinesFactor VIIaOrthopedic ProceduresDrug Administration ScheduleDrug Therapy, CombinationRenal InsufficiencyBlood PlateletsRisk FactorsSodium SalicylateQuality-Adjusted Life YearsSingle-Blind MethodMulticenter Studies as TopicInjections, SubcutaneousPostoperative ComplicationsBlood Coagulation FactorsThrombinAsthma, Aspirin-InducedTime FactorsTablets, Enteric-CoatedProspective StudiesRisk AssessmentAcute DiseaseCyclooxygenase 1Gastrointestinal HemorrhageFollow-Up StudiesArea Under CurveProstaglandin-Endoperoxide SynthasesPlatelet ActivationCross-Over StudiesThromboxanesIbuprofenMarkov ChainsThromboxane A2Cyclooxygenase 2 InhibitorsDipyridamole