Prevalence of Helicobacter Pylori in Iranian Children: A Systematic Review and Meta-Analysis Study

Background: The prevalence of null null infection is reported variously in different studies in Iran. These study aimed to determine the prevalence of null null infection in children in Iran. Materials and Methods: In this systematic review and meta-analysis, we searched Medline, Scopus, EMBASE, Web of Science, and Google scholar systematically from Jan 1990 to up to December 2020. Helicobacter pylori, Child, null pylori, Campylobacter pylori...