title: Letter: Subacute combined degeneration.
mesh_terms: D000293:Adolescent; D000748:Anemia, Macrocytic / Q000209:etiology; D005260:Female; D006801:Humans; D013118:Spinal Cord Diseases / Q000209:etiology*; D014806:Vitamin B 12 Deficiency / Q000150:complications*