[1]
B. I. . Khan, H. . Waris, A. . Amir, A. . Nazir, A. . Khan, and Q. . Ali, “Frequency of Helicobacter pylori (H. pylori) in Patients Operated for Duodenal Ulcer Perforation”, Biol Clin Sci Res J, vol. 6, no. 8, pp. 121–124, Aug. 2025.