Head Neck Surg, Phillip J Otolaryngol. “Contents Vol. 35 No.1 January-June 2020”. Philippine Journal of Otolaryngology Head and Neck Surgery 35, no. 1 (May 18, 2020): 3. Accessed April 24, 2024. https://pjohns.pso-hns.org/index.php/pjohns/article/view/1305.