Nadia. M. Mohammad, & Sabah M. Salih. (2019). Helicobacter pylori infection Evluated by C14-urea Breath test and it`s Relation with age, sex and ABO/Rhesus blood Groups in Patients with Gastrointestinal complaints in Kirkuk City / Iraq. Tikrit Journal of Pure Science, 24(4), 12–15. https://doi.org/10.25130/tjps.v24i4.389