title: World wide distribution of intestinal parasites with special reference to their frequency and geographical distribution in Iran.
mesh_terms: D001196:Ascariasis / Q000453:epidemiology; D006725:Hookworm Infections / Q000453:epidemiology; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology* / Q000635:transmission; D007492:Iran; D014252:Trichostrongyloidiasis / Q000453:epidemiology; D014257:Trichuriasis / Q000453:epidemiology