Medical Order Entry SystemsDrug Therapy, Computer-AssistedMedication Systems, HospitalMedication ErrorsHospital Information SystemsClinical Pharmacy Information SystemsMedical Records Systems, ComputerizedDecision Support Systems, ClinicalUser-Computer InterfaceAttitude to ComputersOrganizational InnovationMedication SystemsRadiology Department, HospitalPharmacy Service, HospitalReminder SystemsDecision Making, Computer-AssistedPatient Care ManagementSystems IntegrationLogical Observation Identifiers Names and CodesHospitals, VeteransSafety ManagementDiffusion of InnovationPhysiciansMedical Staff, HospitalAcademic Medical CentersPhysician's Practice PatternsHospitals, TeachingMedical ErrorsDrug-Related Side Effects and Adverse ReactionsHospitals, PediatricHospitals, UniversityAmbulatory Care Information SystemsElectronic PrescribingHospitals, GeneralUnited States Department of Veterans AffairsComputers, MainframeNursing Staff, HospitalComputer User TrainingClinical Laboratory Information SystemsTime and Motion StudiesUnited StatesHospital CostsFormularies, HospitalCapital Expenditures