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Kaplan-Meier survival curves of gastric cancer patients who had preoperative p16 methylation according to the postoperative disappearance of p16 hypermethylation. (A) Seventeen early gastric cancer (EGC) patients. (B) Twenty-five advanced gastric cancer (AGC) patients. (C) Twentysix gastric cancer patients without lymph node metastasis. (D) Sixteen gastric cancer patients with lymph node metastasis.
