exercise test
Of the remaining 23       patients who could not perform an early exercise test (because of unstable       angina, heart failure, or thrombus detected at echocardiography), five died or       had a myocardial infarction and six underwent bypass surgery or percutaneous       transluminal coronary angioplasty (PTCA) during a follow up period of one year.
Of the remaining 23        @OBJECT$  who could not  @PREDICAT$  an early  @SUBJECT$  (because of unstable       angina, heart failure, or thrombus detected at echocardiography), five died or       had a myocardial infarction and six underwent bypass surgery or percutaneous       transluminal coronary angioplasty (PTCA) during a follow up period of one year.