Teixeira, Henrique, Mariana Branco Lopes, Ricardo São Pedro, Maria Helena Rosa, and Luís Antunes. “When it’s Not a Complicated Frontal Sinusitis - A Langerhans Cell Histiocytosis Case-Report”. Portuguese Journal of Otorhinolaryngology and Head and Neck Surgery 60, no. 1 (March 30, 2022): 69–71. Accessed October 27, 2024. https://journalsporl.com/index.php/sporl/article/view/2161.