AspirinAnalgesicsPlatelet Aggregation InhibitorsMedication ErrorsMedication AdherenceAnti-Inflammatory Agents, Non-SteroidalTiclopidineThromboxane B2Cyclooxygenase InhibitorsMedication ReconciliationMedication SystemsPlatelet AggregationMedication Systems, HospitalSalicylatesDrug Therapy, CombinationPlatelet Function TestsTreatment OutcomeBlood PlateletsSodium SalicylateFibrinolytic AgentsDouble-Blind MethodRisk FactorsAnticoagulantsSelf MedicationPatient ComplianceDrug PrescriptionsHemorrhageWarfarinProspective StudiesAsthma, Aspirin-InducedTablets, Enteric-CoatedDose-Response Relationship, DrugPrescription DrugsDrug TherapyDrug UtilizationGastrointestinal HemorrhageCyclooxygenase 1IbuprofenPolypharmacyTime FactorsBleeding TimeProstaglandin-Endoperoxide SynthasesPlatelet ActivationFollow-Up StudiesUnited StatesThromboxanesPsychotropic DrugsAcetaminophenCyclooxygenase 2 InhibitorsThromboxane A2Nonprescription DrugsThrombosisDrug InteractionsDipyridamoleMyocardial InfarctionDrug CostsDrug ResistanceCohort StudiesDrug Administration ScheduleRetrospective StudiesStrokeAntihypertensive AgentsAntipsychotic AgentsLipoxinsDrug-Related Side Effects and Adverse ReactionsIndomethacinCardiovascular DiseasesRisk AssessmentGastric MucosaSulfinpyrazoneNaproxenCyclooxygenase 2Drug HypersensitivityStomach UlcerRandomized Controlled Trials as TopicReye SyndromePharmacistsClinical Pharmacy Information SystemsPharmaceutical PreparationsRecurrencePrimary PreventionTreatment RefusalProstaglandinsMedical Order Entry SystemsPhysician's Practice PatternsAdministration, Oral