Dawood, Shawnam Nasih. “Normal Anatomic Variants of Paranasal Sinus Region Studied by Computed Tomography”. Zanco Journal of Medical Sciences (Zanco J Med Sci) 24, no. 2 (August 30, 2020): 187–196. Accessed April 20, 2024. https://zjms.hmu.edu.krd/index.php/zjms/article/view/770.