Asif, Muhammad, Shahid Ali Shah, Farida Khan, and Rehman Ghani. “FOREIGN BODY INHALATION - SITE OF IMPACTION AND EFFICACY OF RIGID BRONCHOSCOPY”. Journal of Ayub Medical College Abbottabad 19, no. 2 (June 1, 2007): 46–48. Accessed May 4, 2025. https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/5011.