Fernando AF, Lapeña JFF, Maglalang GM. The Black Sombrero: A Helpful Landmark in Axial Imaging Evaluation of the Larynx and Hypopharynx. Philipp J Otolaryngol Head Neck Surg [Internet]. 2010 Dec. 3 [cited 2024 Nov. 21];25(2):46-8. Available from: https://pjohns.pso-hns.org/index.php/pjohns/article/view/637