Sharma, J. K., Mahich, S. and Mathur, N. (2021) “A comparative study of endoscopic assisted versus conventional middle ear and mastoid surgery at a tertiary care teaching hospital”, International Journal of Otorhinolaryngology and Head and Neck Surgery, 8(1), pp. 21–25. doi: 10.18203/issn.2454-5929.ijohns20214823.