Shortening fraction of >= % by echocardiogram, or ejection fraction of > % by echocardiogram or radionuclide angiogram Ejection fraction of >= % by gated radionuclide study Shortening fraction of >= % by echocardiogram OR ejection fraction of >= % by radionuclide angiogram Ejection fraction of >= % by radionuclide angiogram Shortening fraction of >= % by echocardiogram, or ejection fraction of >= % by radionuclide angiogram Ejection fraction of >= % by radionuclide angiogram Ejection fraction of >= % by radionuclide angiogram or echocardiogram Ejection fraction of >= % by radionuclide angiogram (for patients on doxorubicin-containing regimens (Groups C, D, E, and F) Ejection fraction of >= % by gated radionuclide study (while not receiving medications for cardiac function) Patients must have adequate cardiac function as defined as:\r\n* Shortening fraction of ? % by echocardiogram, or\r\n* Ejection fraction of ? % by radionuclide angiogram Within weeks prior to study enrollment: Ejection fraction of >= % by radionuclide angiogram Ejection fraction of >= % by gated radionuclide study/echocardiogram Ejection fraction of >= % by gated radionuclide study Ejection fraction > % by echocardiogram or radionuclide study Shortening fraction > % by echocardiogram, or ejection fraction > % by radionuclide angiogram Ejection fraction of >= % by radionuclide angiogram or echocardiogram Ejection fraction of >= % by radionuclide angiogram or echocardiogram Shortening fraction of >= % by echocardiogram, or ejection fraction of >= % by radionuclide angiogram Ejection fraction >= % by radionuclide angiogram Ejection fraction >= % by ECHO or gated radionuclide study Patients must have a shortening fraction greater than or equal to % by echocardiogram, OR ejection fraction greater than or equal to % by radionuclide angiogram (multigated acquisition [MUGA]) Ejection fraction of >= % by radionuclide angiogram Ejection fraction of >= % by radionuclide angiogram Ejection fraction >= % by radionuclide evaluation Ejection fraction of < % (by radionuclide angiogram or echocardiogram) or shortening fraction of < % (by echocardiogram)\r\n* Note: for instances where both are reported, and one is below the threshold, the site will have the option to re-measure it centrally at the core lab Ejection fraction of > % by radionucleotide angiogram or echocardiogram Ejection fraction of > % by radionuclide angiogram or echocardiogram