AspirinPlatelet Aggregation InhibitorsDrug Therapy, Computer-AssistedMedical Order Entry SystemsAnti-Inflammatory Agents, Non-SteroidalReminder SystemsTiclopidineDecision Support Systems, ClinicalMedication ErrorsThromboxane B2Cyclooxygenase InhibitorsClinical AlarmsPlatelet AggregationMedication Systems, HospitalSalicylatesPlatelet Function TestsElectronic PrescribingClinical Pharmacy Information SystemsDrug Therapy, CombinationHospital Communication SystemsBlood PlateletsSodium SalicylateWarfarinFibrinolytic AgentsMedication SystemsAnticoagulantsHemorrhageAsthma, Aspirin-InducedDrug InteractionsTablets, Enteric-CoatedCyclooxygenase 1Bleeding TimeGastrointestinal HemorrhageProstaglandin-Endoperoxide SynthasesPlatelet ActivationTime FactorsThromboxanesProspective StudiesIbuprofenRisk FactorsDose-Response Relationship, DrugThromboxane A2Double-Blind MethodHospital Information SystemsAmbulatory Care Information SystemsThrombosisCyclooxygenase 2 InhibitorsBloodDipyridamoleAttitude to ComputersMedical Records Systems, ComputerizedTreatment OutcomeDrug HypersensitivityLipoxinsFungemiaAcetaminophenDrug ResistanceIndomethacinMyocardial InfarctionStrokeSulfinpyrazoneGastric MucosaCyclooxygenase 2Reye SyndromeStomach UlcerUser-Computer InterfaceBacteriological TechniquesProstaglandinsNaproxenFollow-Up Studies