Chuangsuwanich, Apirag, and Sriwimon Manochiopinig. “Nasoendoscopy : Clinical Implications”. Siriraj Medical Journal 53, no. 12 (August 27, 2020): 757–771. Accessed May 20, 2024. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245537.