Figure 4. The relative expression and diagnostic ROC curve of ULBP2 gene in COAD tumor tissues and adjacent normal tissues. Notes: (A, B) The relative expression of ULBP2 gene; (C) diagnostic ROC curve. Notes: COAD: colon adenocarcinoma; ULBP: unique long 16 (UL16)-binding protein; AUC: area under the curve; CI: confidence interval.