Khalid, A., John, A., Ali, A., Batool , N., & Zamir, A. (2022). Frequency of Gastrointestinal Diseases Diagnosed on Barium Contrast Studies: Frequency of Gastrointestinal Diseases. Pakistan BioMedical Journal, 5(5), 325-329. https://doi.org/10.54393/pbmj.v5i5.511