In the oligodendroglioma cohort, 4/22 (18%) lncRNAs were associated with better patient survival (Supplementary Fig. 5C), of which two (lnc-GBMT-5 and lnc-GBMT-8) were also expressed at lower levels in high-grade oligodendroglioma tumors and only one (lnc-SLC19A1-12) was significantly associated with patient survival also in the whole diffuse glioma cohort (Supplementary Figs. 4A and 5C, Supplementary Table 1). The gene discussed is SLC19A1; the disease is oligodendroglioma.