8. Have active cardiac disease, defined as one or more of the following: history of uncontrolled of symptomatic angina, history of arrhythmias requiring medications, or clinically significant; myocardial infarction < 6 months from study entry; uncontrolled or symptomatic congestive heart failure; ejection fraction below the institutional normal limit; any other cardiac condition, which is in the opinion of the treating physician, would make this protocol unreasonably hazardous for the patient