Left ventricular ejection fraction < %, symptomatic coronary artery disease, or uncontrolled arrhythmias Symptomatic cardiac disease including ventricular dysfunction, left ventricular ejection fraction < %, symptomatic coronary artery disease or symptomatic arrhythmias Adequate cardiac function with left ventricular ejection fraction >= %. No uncontrolled arrhythmias or symptomatic cardiac disease Symptomatic or uncontrolled arrhythmias No uncontrolled arrhythmias or symptomatic cardiac disease No uncontrolled arrhythmias or symptomatic cardiac disease Research participant requires pressor support and/or has symptomatic cardiac arrhythmias Not requiring pressor support, not having symptomatic cardiac arrhythmias Not requiring pressor support, no symptomatic cardiac arrhythmias, no acute coronary syndrome, or uncontrolled hypertension Cardiovascular: not requiring pressor support, no symptomatic cardiac arrhythmias, no acute coronary syndrome, or uncontrolled hypertension Cardiovascular criteria: not requiring pressor support, no symptomatic cardiac arrhythmias, no acute coronary syndrome, or uncontrolled hypertension Left ventricular ejection fraction at least % on appropriate medical therapy; no uncontrolled arrhythmias or symptomatic cardiac disease Left ventricular ejection fraction >= %; no uncontrolled arrhythmias or uncontrolled symptomatic cardiac disease Left ventricular ejection fraction >= %; no uncontrolled arrhythmias or uncontrolled symptomatic cardiac disease Left ventricular ejection fraction (EF) >= % with no uncontrolled arrhythmias or symptomatic heart disease LVEF (left ventricular ejection fraction) >= %; no uncontrolled arrhythmias or symptomatic cardiac disease Cardiac-left ventricular ejection fraction < %, symptomatic coronary artery disease, or uncontrolled arrhythmias Known history of: cardiac disease, heart failure or decreased left ventricular ejection fraction, significant clinical arrhythmias ENROLLMENT: Uncontrolled arrhythmias or uncontrolled symptoms of cardiac disease noted by screening history and physical. Patients with known cardiac dysfunction should have an ejection fraction (EF) > % documented by echocardiogram (ECHO). Left ventricular ejection fraction (LVEF) >= %, no uncontrolled arrhythmias or symptomatic cardiac disease. Cardiac arrhythmias Not requiring pressor support, not having symptomatic cardiac arrhythmias Uncontrolled arrhythmias or symptomatic heart disease or left ventricular ejection fraction (LVEF) < % Known history of: cardiac disease, heart failure or decreased left ventricular ejection fraction, significant clinical arrhythmias No uncontrolled arrhythmias or symptomatic cardiac disease Adequate cardiac function with left ventricular ejection fraction at least % on appropriate medical therapy; no uncontrolled arrhythmias or symptomatic cardiac disease Left ventricular ejection fraction >= %; no uncontrolled arrhythmias or symptomatic cardiac disease Left ventricular ejection fraction >= %; no uncontrolled arrhythmias or symptomatic cardiac disease Symptomatic cardiac disease including ventricular dysfunction, left ventricular ejection fraction < %, symptomatic coronary artery disease or symptomatic arrhythmias With the exception of treatment-nave elderly AML patients, patients with uncontrolled congestive heart failure (CHF), coronary heart disease (CAD), chronic obstructive pulmonary disease (COPD), or left ventricular ejection fraction (LVEF) of ? % are excluded, symptomatic or uncontrolled arrhythmias or on continuous corticosteroids.