http://www.mayoclinic.org/breast-cancer/treatment.html

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Other Therapies
Mayo's clinical trials include experimental treatments, often unavailable elsewhere, which frequently lead to improved patient care for people worldwide. Mayo offers many experimental therapies, including Herceptin therapy. A Mayo physician can advise about experimental treatments.

Mayo Clinic Familial Cancer Program
In addition to these standard procedures, Mayo Clinic offers patients the opportunity to participate in the Familial Cancer Program, which helps to identify people at higher risk for breast cancer related to family history. A team of nurses, doctors and geneticists evaluate the patient and family. They determine risk potential cancer risk and develop a customized cancer screening plan for families at increased risks. Consultations in the Familial Cancer Program are offered to those who have been diagnosed with cancer and to family members who have not had cancer.