Muhammad Aasim Khan, Mohammad Hanif, Kapeel Raja, Naeem Abbas Gilani, Amanullah Khokhar, Amjad Ali 2022. A Multicenter Cross Sectional Study to Evaluate the Role of Duodenal Bulb Biopsy in the Diagnosis of Celiac Disease. Pakistan Journal of Medical & Health Sciences. 16, 05 (Jul. 2022), 1009. DOI:https://doi.org/10.53350/pjmhs221651009.