After surgery, you will have check-up visits every 3 months for 1 year, then every 6 months for the rest of your life. At these visits, you will have a physical exam and around 1-2 tablespoons of blood collected for routine lab tests. If your doctor feels it is necessary, you may also have CT scans, bone scans, and/or x-rays. These tests are being done to check if the cancer has come back. If the cancer comes back, you will be removed from the study and your doctor will discuss treatment options with you.