The expression levels of RRAGB, RSPH9, RPS6KL1, RXFP1, and RTL1 mRNA were significantly lower and the RRM2 mRNA level was significantly higher in the high-risk group than those in the low-risk group in NSCLC adenocarcinoma of GSE11969 (Figure 8(c)). Here, RXFP1 is linked to adenocarcinoma.