WarfarinAnticoagulantsHeparin, Low-Molecular-WeightVitamin K Epoxide ReductasesThromboembolismHemorrhageDalteparinEnoxaparinProthrombin TimeVenous ThrombosisAtrial FibrillationNadroparinVenous ThromboembolismVitamin KMixed Function OxygenasesHeparinbeta-AlanineAryl Hydrocarbon HydroxylasesRodenticidesPharmacogeneticsBlood CoagulationAspirinAcenocoumarolPulmonary EmbolismFibrinolytic AgentsStrokeThrombosisVitamin K 1Drug MonitoringDrug InteractionsThrombophlebitisPartial Thromboplastin TimeFactor XaAdministration, OralDrug Dosage Calculations4-HydroxycoumarinsPlatelet Aggregation InhibitorsAntithrombinsTreatment OutcomeIntracranial HemorrhagesBenzimidazolesAntithrombin ProteinsDose-Response Relationship, DrugProthrombinEmbolismWhole Blood Coagulation TimeHerb-Drug InteractionsStockings, CompressionRisk FactorsCarbon-Carbon LigasesRodent ControlVitamin K DeficiencyThrombophiliaRetrospective StudiesPhenylbutazoneTime FactorsPyridonesInjections, SubcutaneousProspective Studies