Ali, Syed Asad, Agha Taj Muhammad, Abdul Ghani Soomro, and Akmal Jamal Siddiqui. 2010. “EXTRA OSSEOUS PRIMARY EWING’S SARCOMA”. Journal of Ayub Medical College Abbottabad 22 (3):228-29. https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/2927.