TCF4 and non-small cell lung carcinoma: The Kaplan–Meier curves, analyzing the overall survival (OS) according to the median of ITF2 and DKK1 expressions, showed that only ITF2 high expression levels had a trend towards better overall survival in NSCLC patients with high ITF2 expression levels after 250 days of following up (p = 0.1) (Figure 4C and Figure S3A).