Note: Since the pre-entry LVEF serves as the baseline for comparing subsequent LVEF assessments to determine if bevacizumab therapy can be continued following doxorubicin and cyclophosphamide (AC) and postoperatively, it is critical that this baseline study be an accurate assessment of the patient's LVEF. If the baseline LVEF is greater than 65%, the MUGA scan or echocardiogram must be repeated prior to study entry. The lower of the two LVEF values should be used as the baseline LVEF.