Long-term outcome of patients with intermediate-risk exercise electrocardiograms who do not have myocardial perfusion defects on radionuclide imaging. - Gibbons,R.J.; Hodge,D.O.; Berman,D.S.; Akinboboye,O.O.; Heo,J.; Hachamovitch,R.; Bailey,K.R.; Iskandrian,A.E. (Circulation, 1999)