SPARC and glioblastoma: SPARC has a higher expression among lower grade (Supplementary Figure 3A), Cluster 2 (Supplementary Figure 3B), low-risk group (Supplementary Figure 3C), IHD status of mutant (Supplementary Figure 3D), GBM subtype of mesenchymal (Supplementary Figure 3E), and IDH status of mutant in LGG (Supplementary Figure 3E) groups.