Shamakhi, R., Mubaraki, M., Dighriri, R., Almarir, A. and Alyahya, A. 2021. Aplasia and agenesis of the frontal sinus in individual of southern region in Saudi Arabia. International Journal of Otorhinolaryngology and Head and Neck Surgery. 7, 5 (Apr. 2021), 821–824. DOI:https://doi.org/10.18203/issn.2454-5929.ijohns20211575.