Rathaur, Shiv Kumar, and Jagram Verma. 2020. “Effect of Nasal Obstruction Surgery on Eustachian Tube Function and Middle Ear Ventilation”. International Journal of Otorhinolaryngology and Head and Neck Surgery 6 (6):1054-59. https://doi.org/10.18203/issn.2454-5929.ijohns20202032.