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Survival curves following recurrence in patients administered chemotherapy as second‐line treatment according to the presurgical treatment type, classified on the basis of the mean time to recurrence from the day after surgery (262 days): (a) no presurgical treatment (P = 0.850), (b) neoadjuvant chemotherapy (NAC) (P = 0.336). (
) Late recurrence, and (
) Early recurrence. OS, overall survival.
