Higher risk lesions (SERT 1-4) would be triaged to earlier follow up at 6 then 18 months, since their predicted risk of recurrence at 6 months is 14.8% and at 18 months is 31.8%. All lesions would require a follow up procedure at approximately 36 months after the original EMR since both groups rate of recurrence increases by this time (figure 4) and this will be suggested to the referring specialist.