Dulnuan, Heather Grace, Carlo Victorio Garcia, and Agnes Tirona-Remulla. 2021. “Pyoderma Gangrenosum Initially Presenting As an Ulceration of the Ear Lobule”. Philippine Journal of Otolaryngology Head and Neck Surgery 36 (2):52. https://pjohns.pso-hns.org/index.php/pjohns/article/view/1813.