Qadri, Mir Sajad, and Omar Mohammed Shafi. “Tracheotomy Revisited: Results of a Cross-Sectional Pilot Study”. International Journal of Otorhinolaryngology and Head and Neck Surgery 4, no. 4 (June 23, 2018): 961–965. Accessed November 16, 2025. https://www.ijorl.com/index.php/ijorl/article/view/993.