AHMAD, M, M A KHAN, K M CHEEMA, and A HAMEED. “Malignant Tumors of Nose and Paranasal Sinuses”. Annals of King Edward Medical University 6, no. 2 (December 14, 2017). Accessed May 9, 2024. https://www.annalskemu.org/journal/index.php/annals/article/view/2056.