Geramizadeh, Bita, Mahdokht Azizi, Arash Daryakar, and Faranak Rafiee. “Primary Primitive Neuroectodermal Tumor of the Orbit in an Adult: Case Report and Literature Review”. Biomedical Research and Therapy 7, no. 10 (October 31, 2020): 4058-4065. Accessed August 18, 2022. http://www.bmrat.org/index.php/BMRAT/article/view/642.