Handi, P. S., and M. N. Patil. “Evaluation of Nose and Paranasal Sinus Disease, Anatomical Variations by Computerized Tomography”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 3, no. 4, Sept. 2017, pp. 898-03, doi:10.18203/issn.2454-5929.ijohns20174204.