title: Studies of a patient with selective deficiency in absorption of vitamin B12.
mesh_terms: D000740:Anemia; D002648:Child; D006397:Hematinics; D006801:Humans; D007223:Infant; D014805:Vitamin B 12 / Q000378:metabolism*
chemical_list: D006397:Hematinics; D014805:Vitamin B 12
keywords: ANEMIA, HYPERCHROMIC/in infancy and childhood; VITAMIN B 12/metabolism