AspirinVitamin AVitaminsVitamin DVitamin EVitamin B 12Vitamin A DeficiencyVitamin D DeficiencyVitamin K 1Vitamin B 6Vitamin E DeficiencyVitamin B 12 DeficiencyPlatelet Aggregation InhibitorsVitamin K DeficiencyAnti-Inflammatory Agents, Non-SteroidalVitamin B 6 DeficiencyCholecalciferolAscorbic AcidDietary SupplementsReceptors, CalcitriolVitamin D-Binding ProteinPyridoxineVitamin K 2TiclopidineThromboxane B2Double-Blind MethodCalcifediolCalcitriolCyclooxygenase InhibitorsPlatelet AggregationDrug Therapy, CombinationSalicylatesAntioxidantsAdministration, OralVitamin B DeficiencyErgocalciferolsTime FactorsDietPlatelet Function TestsVitamin K 3WarfarinFolic AcidTreatment OutcomeDrug Administration ScheduleVitamin K Deficiency BleedingDose-Response Relationship, DrugAvitaminosisbeta CaroteneRisk Factorsalpha-TocopherolSunlightBlood PlateletsRicketsNutritional StatusAnticoagulantsProspective StudiesHemorrhageSodium SalicylateVitamin K Epoxide ReductasesFibrinolytic AgentsSodium-Coupled Vitamin C TransportersHydroxycholecalciferols25-Hydroxyvitamin D3 1-alpha-HydroxylaseHomocysteineDrug InteractionsTocopherolsLethal Dose 50LiverRadiation DosageTranscobalaminsAsthma, Aspirin-InducedTablets, Enteric-CoatedFood, FortifiedNutritional RequirementsParathyroid HormoneCyclooxygenase 125-Hydroxyvitamin D 2IbuprofenFollow-Up StudiesProstaglandin-Endoperoxide SynthasesBleeding TimePlatelet ActivationGastrointestinal HemorrhagePregnancyMethylmalonic AcidThromboxanesDihydroxycholecalciferolsCarotenoidsVitamin D Response ElementThrombosisThromboxane A2Drug ResistanceCarbon-Carbon LigasesPlacebosCalcium, DietaryRiboflavinAcetaminophenChromatography, High Pressure LiquidRandom AllocationCyclooxygenase 2 Inhibitors