Azwan NAB, Shanmugam RKS, Teng KY. A nearly missed foreign body in frontal sinus: case report. Int J Otorhinolaryngol Head Neck Surg [Internet]. 2020 Jan. 24 [cited 2025 Nov. 16];6(2):425-7. Available from: https://www.ijorl.com/index.php/ijorl/article/view/1916