Singh BP, Metgudmath RB, Singh D, Saxena U. Anatomical variations of sphenoid sinus among patients undergoing computed tomography of paranasal sinus. Int J Otorhinolaryngol Head Neck Surg [Internet]. 2019 Jun. 27 [cited 2025 Nov. 16];5(4):888-92. Available from: https://www.ijorl.com/index.php/ijorl/article/view/1667