| http://www.w3.org/ns/prov#value | - in CpG-rich DNA islands is a common event in a variety of human cancers, and in some instances is a mechanism of gene silencing. (1) Aberrantly methylated DNA can also serve as a tumor biomarker that can be detected in tumor tissues, as well as in blood, stool and urine of patients with certain types of cancer.(2???6) We have previously reported that methylation of a CpG island overlapping the fir
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