Interestingly, high mRNA level of ALDH1A3 and ALDH1L1 were also significantly associated with worsen OS in all GC patients, with HR = 1.5 (1.26–1.79), p = 0.0000 (Figure 3C) and HR = 1.89 (1.59–2.32), p = 0.0000 (Figure 3E). This evidence concerns the gene ALDH1L1 and gastric cancer.