Ashtari, S., M. A. Pourhoseingholi, M. Molaei, H. Taslimi, and M. R. Zali. “The Prevalence of Helicobacter Pylori Is Decreasing in Iranian Patients”. Gastroenterology and Hepatology from Bed to Bench, vol. 8, no. Supplement 1, May 2015, pp. S23-S29, doi:10.22037/ghfbb.v8iSupplement.765.