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Recurrence-free survival curves for patients: with or without PIK3CA mutation (A); with single PIK3CA mutation, coexistence of PIK3CA and other gene mutation, and those in PIK3CA wild-type group (B). with or without PIK3CA mutation in EGFR/KRAS wild-type group (C); with PIK3CA mutation in exon 9 or exon 20 (D).
