title: Reply from the author.
authors: Mabrook A
authors: MA
authors: Bin Mohanna
mesh_terms: D000562:Amebiasis / Q000453:epidemiology*; D005260:Female; D005873:Giardiasis / Q000453:epidemiology*; D016481:Helicobacter Infections / Q000453:epidemiology*; D016480:Helicobacter pylori / Q000276:immunology*; D006801:Humans; D008297:Male