DNA Methylation -- Epigenetic Mechanisms of Gene Regulation -- DNA Hypo- vs. Hypermethylation in Cancer -- DNA Methylation in Urological Cancers -- DNA Methylation in Colorectal Cancer -- CpG Island Hypermethylation of Tumor Suppressor Genes in Human Cancer -- The Loss of Methyl Groups in DNA of Tumor Cells and Tissues -- Identifying Clinicopathological Association of DNA Hypermethylation in Ca…