WarfarinVitamin K Epoxide ReductasesAnticoagulantsMixed Function OxygenasesInternational Normalized RatioAryl Hydrocarbon HydroxylasesDrug Dosage CalculationsPharmacogeneticsThromboembolismCarbon-Carbon LigasesProthrombin TimeGenotypeDose-Response Relationship, DrugDrug MonitoringHemorrhageAtrial FibrillationCytochrome P-450 Enzyme SystemPolymorphism, GeneticPolymorphism, Single NucleotideAsian Continental Ancestry GroupBiomarkers, PharmacologicalEgyptBlood CoagulationAlgorithmsAllelesAfrican AmericansCohort StudiesGene Frequencybeta-AlanineVitamin KHeart Valve Prosthesis ImplantationTreatment OutcomeHeart ValvesRodenticidesGenetic VariationEuropean Continental Ancestry GroupLinear ModelsDrug InteractionsProspective StudiesAdministration, OralCalcium-Binding ProteinsStrokeAspirinTime FactorsVitamin K 1Age FactorsHaplotypesRegression AnalysisMaintenanceDrug Administration ScheduleModels, GeneticPolymorphism, Restriction Fragment LengthBenzimidazolesGenome-Wide Association Study4-Hydroxycoumarins