Observations on the etiologic relationship of achylia gastrica to pernicious anemia; activity of vitamin B12 as food, extrinsic factor.
D000126:Achlorhydria; D000740:Anemia / Q000209:etiology*; D000752:Anemia, Pernicious; D005502:Food; D006397:Hematinics; D006801:Humans; D014805:Vitamin B 12
D006397:Hematinics; D014805:Vitamin B 12
ANEMIA/etiology and pathogenesis