Figure 2. Kaplan–Meier survival curves for NKG2DL genes in COAD of TCGA cohort. Notes: RFS stratified by MICA (A); MICB (B); ULBP1 (C); ULBP2 (D); ULBP3 (E); RAET1E (F); RAET1G (G); RAET1L (H). OS stratified by MICA (I); MICB (J); ULBP1 (K); ULBP2 (L); ULBP3 (M); RAET1E (N); RAET1G (O); RAET1L (P). COAD: colon adenocarcinoma; NKG2DL, Natural Killer Group 2 Member D Ligand; ULBP: unique long 16 (UL16)-binding protein; MIC: Human Major Histocompatibility Complex (MHC) class I polypeptide-related sequence; TCGA: The Cancer Genome Atlas; RFS, recurrence-free survival; OS, overall survival.