MICHAELIDES, A RYAN, JM VANFOSSEN, D POZDERAC, R and BOUDOULAS, H, EXERCISE-INDUCED QRS PROLONGATION IN PATIENTS WITH CORONARY-ARTERY DISEASE - A MARKER OF MYOCARDIAL-ISCHEMIA, American Heart Journal, (126), 1320-1325, 1993, Mosby Year Book Inc, 0002-8703, 1097-6744