Dear Jackie49: AC or AC+T has nearly replaced CMF as the standard of care for cancers requiring chemotherapy. CMF is still used in elderly, frail, or people with a significant heart problem. The benefit of chemotherapy will depend upon your age and relative risk of recurrence. ER/PR negative tumors do not do as well as ER/PR positive tumors. You should consider a thorough discussion with your oncologist about the risks and benefits of chemotherapy as it pertains specifically to your situation. Another option is to seek a second opinion, preferably with an oncologist who specializes in breast cancer.