American Cancer Society. (2014, March 5). Brain and Spinal Cord Tumors in Adults. Retrieved from: http://www.cancer.org/acs/groups/cid/documents/webcontent/003088-pdf.pdf.
American Joint Committee on Cancer. (2010). AJCC Cancer Staging Handbook. (7th Edition). Chicago: Springer.
American Society of Clinical Oncology. (2015, August). Brain Tumor. Retrieved from: http://www.cancer.net/cancer-types/brain-tumor/view-all.
Everson RG, Liau LM. Malignant gliomas. Bernstein M and Berger MS (eds.). (2015). Neuro-oncology: The Essentials. (3rd Edition). New York: Thieme. 25: 289-301.×