You will be examined by a doctor before the second and third cycle of therapy (every 4 weeks). You will have blood drawn (about 2 tablespoons) every week during the first 2 to 3 cycles of therapy. After Cycle 3 of therapy, blood tests (about 2 tablespoons) will be done before each cycle of therapy. Chest x-rays, CT chest scans, and any other imaging studies, as done at the beginning of this study, will be done to measure your disease and will be repeated after every 3 cycles of therapy. You will also have a breathing function test, if the doctor thinks it is necessary.