Choudhury AA, Sultana T, Joarder MAH, Tarafder KH. A comparative study of elective and emergency tracheostomy. Bangladesh J of Otorhinolaryngology [Internet]. 2009 Sep. 7 [cited 2024 Apr. 27];14(2):57-62. Available from: https://banglajol.info/index.php/BJO/article/view/3282