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Kaplan-Meier survival curves depicting progression/recurrence-free survival according to (A) maximal AP tumor diameter (≤2 vs >2 cm), (B) maximal CC tumor diameter (≤4 vs >4 cm), and (C) a combination of AP and CC tumor diameters (AP ≤2 cm and/or CC ≤4 cm vs AP >2 cm and CC >4 cm). P values refer to the log-rank test for equality of survival distribution.
