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Patients who received surgery after progression/recurrence have improved overall survival (OS) (a) and survival after progression/recurrence (b), but not subsequent progression after the second surgery (c) compared to patients who did not receive a repeat surgery. Tick marks indicate censored patients. Patients who received surgery after progression/recurrence are represented in the upper curve in (a) and (b) and the upper curve at years 0-3 in (c).
