Ibrahim, A., A. Dawod, and R. Omran. “Comparison of Stool Antigen Test With Histological Examination of Gastric Biopsy for Detection of Helicobacter Pylori Infection in Children With Nodular Antritis”. Tishreen University Journal -Medical Sciences Series, vol. 42, no. 1, Mar. 2020, https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/9502.