SARITAŞ, Ülkü, et al. “Portal Hypertansive Gastropathy and Helicobacter Pylori: An Endoscopic and Histopathologic Study”. Turkish Journal of Gastroenterology, vol. 3, no. 3, Jan. 1992, pp. 528-33, https://turkjgastroenterol.org/index.php/tjg/article/view/153.