After the 6-month period, if follow-up is scheduled for you at M. D. Anderson, you will have about 3 tablespoons of blood drawn (during the follow-up visits) once every 3 months for the next 5 years. You will have a total of 20 blood draws for this portion of the study. During your follow-up, you will have a routine clinic visit to monitor any tumor recurrences (occurring again). You will continue to have this visit about every 2 to 6 months, depending on the risk of any tumor recurrence.