In addition, our analysis of TCGA data on lung adenocarcinoma revealed that elevated expression of hypoxia-inducible factor 1A (HIF1A) (Figure 2A), lactate dehydrogenase A (LDHA) (Figure 2B), lactate dehydrogenase B (LDHB) (Figure 2C) and SLC16A1 (Figure 2D) is significantly correlated with poor prognosis. This evidence concerns the gene LDHB and lung adenocarcinoma.