Head and Neck Surg, Philipp J Otolaryngol. “Contents Vol. 33 No. 2 July – December 2018”. Philippine Journal of Otolaryngology Head and Neck Surgery 33, no. 2 (May 21, 2020): 3. Accessed May 5, 2024. https://pjohns.pso-hns.org/index.php/pjohns/article/view/1325.