Zafar Ali , Jaweria Riaz , Mahwash Rashid (2012) “Skeletal and Extra Skeletal Ewing’s Sarcoma / Primitive Neuroectodermal Tumors(PNET): Clinicopathological Study”, Journal of Rawalpindi Medical College. Rawalpindi, Pakistan, 16(2). Available at: https://www.journalrmc.com/index.php/JRMC/article/view/574 (Accessed: 24 December 2025).