Ramasundram, Shankar, Sharmini Kuppusamy, Sivakumar Kumarsamy, Valuyeetham Kamara Ambu, and Irfan Mohamad. “Bronchoscopy for Removal of Foreign Body in Lower Airway: A Retrospective Analysis”. Bangladesh Journal of Medical Science 18, no. 4 (August 30, 2019): 779–782. Accessed April 30, 2024. https://www.banglajol.info/index.php/BJMS/article/view/42904.