IGFBP7 and glioma: Glioma patients with IGFBP7 lower expressions had prolonged overall survival compared with glioma patients with IGFBP7 higher expressions in TCGA‐GBMLGG, CCGA‐GBMLGG, GSE4412 ‐GBMLGG and GSE43378 ‐GBMLGG datasets (Figure 6D).