Ullah, Asmat, Inayat Ullah, Ghulam Rasool, and Mohtashim Billah. “Endoscopic Removal of the Tracheobronchial Foreign Bodies At a Peripheral Hospital”. Journal of Postgraduate Medical Institute 18, no. 3 (October 5, 2011). Accessed July 22, 2024. https://jpmi.org.pk/index.php/jpmi/article/view/913.