Saeed, C. H. “Association Between Helicobacter Pylori Infection IgG and HbA1c in Type 2 Diabetes Mellitus”. 2021. Karbala Journal of Medicine, vol. 14, no. 1, Sept. 2022, pp. 2397-03, https://journals.uokerbala.edu.iq/index.php/kj/article/view/838.