CRT	Concurrent Chemoirradiation
EMT	Epithelial–Mesenchymal Transition
GBM	Glioblastoma
GTV T1	Gross Tumor Volume on T1 Gadolinium-Enhanced MRI Sequence
GTV T2	Gross Tumor Volume on T2 FLAIR Signal Sequence
MGMT	O6-Methylguanine-DNA Methyltransferase
OS	Overall survival
PFS	Progression-Free Survival
RPA	Recursive Partitioning Analysis
RT	Radiation Therapy
TMZ	Temozolomide
VPA	Valproic Acid
WHO	World Health Organisation