Formalejo, Jan Paul D., and Jay Pee M. Amable. “Non-Traumatic Cerebrospinal Fluid Leak from a Sphenoid Sinus Midline Roof Defect Previously Managed As Allergic Rhinitis”. Philippine Journal of Otolaryngology Head and Neck Surgery 34, no. 1 (June 18, 2019): 48–51. Accessed November 23, 2024. https://pjohns.pso-hns.org/index.php/pjohns/article/view/967.