Satna, Kuldeep, and Sunitha Bandaru. “A Study on Tracheostomy”. International Journal of Otorhinolaryngology and Head and Neck Surgery 5, no. 5 (August 27, 2019): 1279–1285. Accessed November 1, 2025. https://www.ijorl.com/index.php/ijorl/article/view/1581.