Hameed, Khalid, Muhammad Kaman Hassan, and Sher Rehman. “MANAGEMENT OF FOREIGN BODIES IN THE UPPER GASTROINTESTINAL TRACT WITH FLEXIBLE ENDOSCOPE”. Journal of Postgraduate Medical Institute 25, no. 3 (October 14, 2011). Accessed April 29, 2024. https://www.jpmi.org.pk/index.php/jpmi/article/view/1089.