ALDH3A1 and glioblastoma: Whereas ALDH expression serves as biological marker in solid tumors, we could not verify any prognostic value for ALDH3A1 in glioblastoma by searching several data bases (The Cancer Genome Atlas (TCGA) https://cancergenome.nih.gov/, The Cancer Imaging Archive (TCIA) [36], Murat et al. [37], Reifenberger et al. [38]).