Khalid, Aneeqa, Akash John, Abid Ali, Narjis Batool, and Areej Zamir. “Frequency of Gastrointestinal Diseases Diagnosed on Barium Contrast Studies: Frequency of Gastrointestinal Diseases”. Pakistan BioMedical Journal 5, no. 5 (May 31, 2022): 325–329. Accessed April 27, 2024. https://pakistanbmj.com/journal/index.php/pbmj/article/view/511.