H. T. L. Duong and H. N. Kha, “STUDY ON CLINICAL CHARACTERISTICS, ENDOSCOPIC IMAGES AND TREATMENT RESULTS OF PATIENTS WITH GASTRODUODENAL ULCERS INFECTED WITH HELICOBACTER PYLORI AND TREATED WITH THE BISMUTH- CONTAINING QUADRUPLE THERAPY”, CTJUMP, no. 53, pp. 53–60, Nov. 2022.