title: Letter: Biochemical lesion in pernicious anaemia.
mesh_terms: D000752:Anemia, Pernicious / Q000188:drug therapy / Q000378:metabolism*; D005492:Folic Acid / Q000378:metabolism* / Q000627:therapeutic use; D006801:Humans; D013763:Tetrahydrofolates / Q000378:metabolism / Q000627:therapeutic use
chemical_list: D013763:Tetrahydrofolates; D005492:Folic Acid