SHARMA, J. K.; MAHICH, S.; MATHUR, N. 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, [S. l.], v. 8, n. 1, p. 21–25, 2021. DOI: 10.18203/issn.2454-5929.ijohns20214823. Disponível em: https://www.ijorl.com/index.php/ijorl/article/view/3361. Acesso em: 17 jan. 2026.