aGenetic alterations of six tumor-related gene in paired oligodendroglial tumors. “1st” and “2nd” indicate the primary (at initial diagnosis) and secondary (after progression) resections, respectively
Promoter methylation is the most significant mechanism to regulate O6-methylguanine-DNA-methyltransferase (MGMT) expression. Single-nucleotide polymorphisms (SNPs) in the MGMT promoter region may also
