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Subgroup survival analysis of TCGA cohort. (A) Age ≥ 60. (B) Age < 60. (C) Female. (D) Male. (E) Stages T1 and T2. (F) Stages T3 and T4. (G) Stage N0. (H) Stages N1, N2, and N3. (I) Stage M0. (J) Stage M1. (K) TNM stages I and II. (L) TNM stages III and IV. TCGA, The Cancer Genome Atlas.
