 - Postoperative chemotherapy will begin at least three weeks after surgery. Everyone on the research study will receive four 2-week cycles of doxorubicin and cyclophosphamide plus bevacizumab. After the 8 weeks, the doctor will decide which of the following two treatment regimens the participant will receive: Bevacizumab for four 2-week cycles once every two weeks or; Paclitaxel plus bevacizumab for four 2-week cycles once every two weeks. 