title: Irreversible neurologic degeneration secondary to vitamin B12 deficiency without anemia: report of a case.
mesh_terms: D000752:Anemia, Pernicious / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009410:Nerve Degeneration; D013118:Spinal Cord Diseases / Q000209:etiology* / Q000473:pathology; D014806:Vitamin B 12 Deficiency / Q000150:complications* / Q000473:pathology