Stopeck, A Links between Helicobacter pylori infection, cobalamin deficiency, and pernicious anemia. [electronic resource] - Archives of internal medicine May 2000 - 1229-30 p. digital Publication Type: Editorial; Comment ISSN: 0003-9926 Standard No.: 10.1001/archinte.160.9.1229 doi Subjects--Topical Terms: Anemia, Pernicious--microbiologyHelicobacter Infections--complicationsHelicobacter pyloriHumansVitamin B 12 Deficiency--microbiology