Before you can be enrolled in this study, you must go through some screening tests to make sure you are eligible. The screening tests include a complete medical history and physical exam, including measurement of your pulse rate, breathing rate, temperature, height, weight, and blood pressure. The physical examination will also include measurement of any visible cancer lesions. You will be asked what medications you are taking, including over the counter medications, herbal medications, and vitamins. You will have chest x-rays and/or CT or MRI scans to measure the size of your tumors. You will have routine blood tests (about 2 and a 1/2 tablespoons) performed.