Once you are taken off the study, you will have an end-of-study visit. At this visit, a physical exam, including measurement of vital signs, height, and weight will be performed. You will be asked about any side effects that you may have experienced. You will be asked to answer the questionnaire regarding any neuropathy you may have. Blood (about 4-6 teaspoons) will be drawn for routine tests and to check the status of your WM. You will need to collect your urine over 24 hours to see how your WM is responding. If your initial CT scans showed lesions that appear to be caused by WM, you will have a CT scan repeated at this time.