Cañal, Johanna Patricia A. “Dermal Metastasis from Nasopharyngeal Carcinoma: A Rare Form of Metastasis”. Philippine Journal of Otolaryngology Head and Neck Surgery 26, no. 1 (June 27, 2011): 42–45. Accessed May 2, 2024. https://pjohns.pso-hns.org/index.php/pjohns/article/view/607.