TERT and glioblastoma: In this study, we examined the distribution of various known features in GBM, including age, gender, Karnofsky Performance Status (KPS), grade, IDH status, 1p/19q co-deletion, chr 7 gain & chr 10 loss, chr 19 & 20 co-gain, TERT promoter status, TERT expression status, MGMT promoter methylation, and transcriptome subtypes (Fig. 5A).