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 SystemsReminder SystemsPharmacy Service, HospitalRadiology Department, HospitalDecision Making, Computer-AssistedPatient Care ManagementSystems IntegrationLogical Observation Identifiers Names and CodesHospitals, VeteransPhysiciansSafety ManagementDiffusion of InnovationPhysician's Practice PatternsMedical Staff, HospitalElectronic PrescribingAcademic Medical CentersDrug PrescriptionsTelefacsimileDrug-Related Side Effects and Adverse ReactionsAmbulatory Care Information SystemsMedical ErrorsPharmacistsComputers, MainframeUnited States Department of Veterans AffairsDrug Utilization ReviewFormularies, HospitalComputer User TrainingClinical Laboratory Information SystemsPrescription DrugsTime and Motion StudiesUnited States