In Figure 3, increased mRNA levels of ALDH1A1 and ALDH1B1 expressions were associated with longer OS, i.e. better prognosis of GC patients, with HR = 0.77 (0.65–0.91), p = 0.0021 (Figure 3A) and HR = 0.58 (0.48–0.7), p = 0.0000 (Figure 3D), respectively. This evidence concerns the gene ALDH1A1 and gastric cancer.