Gopalakrishnan, G. and George, S. 2022. Role of preoperative tympanometric evaluation of eustachian tube in patients undergoing type-1 tympanoplasty for chronic otitis media. International Journal of Otorhinolaryngology and Head and Neck Surgery. 8, 5 (Apr. 2022), 479–483. DOI:https://doi.org/10.18203/issn.2454-5929.ijohns20221059.