Lopa RA, Ilustre GM, Hernandez J. Radiographic Measurement of Nasopharyngeal Depth from the Anterior Nasal Spine (ND-ANS) Among Filipino Adults. Philipp J Otolaryngol Head Neck Surg [Internet]. 2023 Nov. 20 [cited 2024 Nov. 22];38(2):17. Available from: https://pjohns.pso-hns.org/index.php/pjohns/article/view/2217