Gopal, S. and Preetha, M. 2019. Clinical significance of paranasal sinuses and its anatomical variations using 3D cone beam computed tomography: a retrospective study. International Journal of Otorhinolaryngology and Head and Neck Surgery. 5, 3 (Apr. 2019), 683–689. DOI:https://doi.org/10.18203/issn.2454-5929.ijohns20191730.