Head and Neck Surg, Philipp J Otolaryngol. “Contents Vol. 32 No. 1 January – June 2017”. Philippine Journal of Otolaryngology Head and Neck Surgery 32, no. 1 (May 25, 2020): 3. Accessed April 30, 2024. https://pjohns.pso-hns.org/index.php/pjohns/article/view/1341.