GBM is the most common primary brain tumor in humans, constituting 12% to 15% of all brain tumors and 50% to 60% of astrocytic tumors.

• GBM是最常见的原发性脑部肿瘤，佔所有脑瘤的12%25至15%25，以及星状细胞瘤的50%25至60%25；