Before the study begins, you will have a physical exam, routine blood tests (1-2 tablespoons), and urine tests. Women who are able to have children must have a negative blood pregnancy test. You will also have a chest x-ray and an ECG (test to measure the electrical activity of the heart). The status of the lymphoma will be evaluated by bone marrow biopsy. To collect a bone marrow sample, an area of the hip or chest bone is numbed with anesthetic and a small amount of bone marrow is withdrawn through a large needle. CT scans and gallium or PET scans will be performed. If you had lymphoma in other areas of your body additional tests may be needed as determined by your treating physician. Tests to evaluate the status of the lymphoma will be repeated before each cycle of chemotherapy. If your white count is low you may need injections of NeupogenTM (growth factor) daily till your white blood cell count is high enough to start the next round of treatment.