Carnate, Jose M. “Spindle Cell Carcinomas of the Upper Aerodigestive Tract”. Philippine Journal of Otolaryngology Head and Neck Surgery 27, no. 2 (December 3, 2012): 37–38. Accessed November 24, 2024. https://pjohns.pso-hns.org/index.php/pjohns/article/view/535.