Joseph, L., K. C. Prasad, P. Koneru, I. Varsha, A. Karunasagar, and A. Pilakkilakkandiyil. “An Unusual Presentation of Sphenochoanal Polyp”. International Journal of Otorhinolaryngology and Head and Neck Surgery, vol. 6, no. 2, Jan. 2020, pp. 410-3, doi:10.18203/issn.2454-5929.ijohns20200162.