Gupta, S., Goel, M. and Jamwal, P.S. 2020. Evaluation of eustachian tube function in chronic suppurative otitis media with reference to its treatment outcome. International Journal of Otorhinolaryngology and Head and Neck Surgery. 6, 2 (Jan. 2020), 297–302. DOI:https://doi.org/10.18203/issn.2454-5929.ijohns20200141.