Hmad, E., Daowd, A., & Esmae, A. E. (2019). prevalance of Helicobacterpylori infection based on gastric biobsy and stool antigen test in adult patients with dyspepsia. Tishreen University Journal -Medical Sciences Series, 41(6). Retrieved from https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/9343