Sherko Muhammed Abdulrahman, et al. “Serological Diagnosis and Epidemiological Impact of Helicobacter Pylori Infection on Human Health in Diyala Governorate, Iraq”. Tikrit Journal of Pure Science, vol. 27, no. 6, Jan. 2023, pp. 6-10, doi:10.25130/tjps.v27i6.751.