<qa>  What is the name of the test that will be done before the study?Before the study, participants will have a complete physical exam, including blood tests and a chest x-ray. A mammogram and a sonogram of the breast and armpit will be done to record tumor size for patients who have not had surgery. Sonography of the liver or a CT scan of the abdomen will also be done. In some patients who have not had surgery, 3-4 samples of the breast tumor will be taken to help confirm the diagnosis of breast cancer. A biopsy needle will be used to collect the samples. 