A summary of 360 primary GC samples obtained from TCGA Humanmethylation450 was used for the Kaplan-Meier survival study and the result demonstrated that GC patients that have hypermethylation of CDKN2A gene and cg04026675 had a better prognosis at the 5-year follow-up (Figure 4(a,b)). The gene discussed is CDKN2A; the disease is gastric cancer.