ALAGÖZ, Şahande, et al. “The Relationship Between Helicobacter Pylori Intensity and Histopathological Findings in Cases With Chronic Gastritis and Duodenal Ulcer”. Turkish Journal of Gastroenterology, vol. 13, no. 2, Jan. 2002, pp. 98-102, https://www.turkjgastroenterol.org/index.php/tjg/article/view/1196.