Bickle, Ian C. “Intracranial Complications of Acute Sinusitis on Brain CT”. Philippine Journal of Otolaryngology Head and Neck Surgery 32, no. 1 (June 29, 2017): 57–58. Accessed November 25, 2024. https://pjohns.pso-hns.org/index.php/pjohns/article/view/201.