Prospective cross sectional study on anatomical variation with special emphasis on critical anatomical landmark in patients undergoing multi detector computed tomography of paranasal sinuses: Anatomical variation in CT PNS. GAIMS J MED SCI. 2022;3(1 (Jan-Jun):13-18. Accessed October 25, 2025. http://gjms.gaims.ac.in/ojs/index.php/gjms/article/view/51