Ahmed, Mian Mashhud, Atia Saeed, Abu Shams Md Hasan Ali Masum, - Md Mohiuddin, and Anisur Rahman. “Declining Prevalence of Helicobacter Pylori Infection- A 13C Urea Breath Test (UBT) Based Study in Symptomatic”. Anwer Khan Modern Medical College Journal 10, no. 2 (November 20, 2019): 121–124. Accessed December 4, 2024. https://banglajol.info/index.php/AKMMCJ/article/view/44120.