[1]
Nihat OKÇU, Tahir BURAN, M. Derya ONUK, Arif YILMAZ, Ersin AKARSU, and Güngör AKÇAY, “Prevalence of Helicobacter pylori in patients with duodenal ulcer”, Turkish Journal of Gastroenterology, vol. 6, no. 4, pp. 447–450, Apr. 2020.