SULEYMANOV, Zeygam. 2003. “Expression of Class I and II MHC Receptors in Helicobacter Pylori-Positive Patients With Active Gastritis and Duodenal Ulcer*”. Turkish Journal of Gastroenterology 14 (3):168-72. https://www.turkjgastroenterol.org/index.php/tjg/article/view/1262.