Breast Cancer is the most common cancer and the second leading cause of cancer deaths among women in the United States. The prevalence of this disease, particularly among those of Ashkenazi descent, underscores the continuing importance of Hadassah Medical Organization's (HMO) breast cancer research.Here to speak with us today about the link between genetics and breast cancer is renown physician Dr. Tamar Peretz. She is one of the premier breast cancer doctors/researchers in Israel and is the head of the Sharett Institute of Oncology at Hadassah Medical Organization in Jerusalem, Israel.