Campylobacter pylori and pernicious anaemia.
D000752:Anemia, Pernicious / Q000150:complications*; D002169:Campylobacter Infections / Q000150:complications*; D005756:Gastritis / Q000209:etiology*; D006801:Humans; D007422:Intestines / Q000473:pathology; D008679:Metaplasia; D011706:Pyloric Antrum / Q000473:pathology